幾何
三角形、円、座標幾何、証明問題。
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problem 8: spiral review determine the missing angle measure in the iso…
30°, 30°
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problem 7: spiral review determine the missing angle measure in the rig…
$65^{\circ}$
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question 15 a student claims the following \if two angles are supplemen…
B. A pair of vertical angles C. A pair non - vertical angles formed by two intersecting lines D. Two right angles that share a common vertex but do not share a common side E. A pa…
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lines f, g and h are shown below with angles 1, 2, 3, 4, 5, 6, 7 and 8.…
B. converse of the corresponding angles postulate
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problem 1 here are three intersecting lines. determine the missing angl…
The three missing angles are $45^{\circ}$, $100^{\circ}$, $55^{\circ}$ (in the order as we analyze them based on the given $45^{\circ}$ and $80^{\circ}$ angles in the problem, fro…
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two angles are supplementary if the sum of their angle measures is equa…
$x = 9$ $m\angle ABC = 38^{\circ}$ $m\angle CBD = 52^{\circ}$ No, the shared ray does not bisect the angle.
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turn and talk: reflex angles are defined in terms of a given angle; the…
1. The measure of the reflex angle of an angle \(x^{\circ}\) is \((360 - x)^{\circ}\). 2. When bisecting a 46° angle, each of the two newly - formed adjacent angles has a measure …
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task 2: use the protractor to find the measure of each of the following…
| Angle | Measurement | Classification | | ---- | ---- | ---- | | $\angle ABD$ | [To be measured with protractor] | [To be classified based on measurement] | | $\angle EBF$ | [To …
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a ray is a part of a line that starts at an endpoint and extends foreve…
A. (Draw two rays with a common endpoint for the first part and two non - intersecting rays for the second part). B. (Draw adjacent angles $\angle ABC$ and $\angle CBD$. Names for…
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are the pockets on this shirt congruent? if so, describe a composition …
A. The pockets on this shirt are congruent. To map the pocket on the left to the pocket on the right, reflect it across the row of buttons.
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the composition of transformations $r_{y = - 5}circ r_{(90^{circ},a)}$ …
The perimeter of △ABC is equal to the perimeter of △XYZ. The perimeter of △ABC is 26. A possible set of values of AB, BC, and AC is 8, 9, 9.
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find a congruence transformation that maps △vyw to △xnf. which congruen…
C. $R_{y - axis}(\triangle VYW)$
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name read the problem. answer the questions to help understand the prob…
1. Area is the amount of space inside a two - dimensional shape. 2. Yes. 3. Each small square represents 1 square unit. 4. The shaded part of the rectangle. 5. Count the number of…
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find the volume of the figure. show or explain your thinking. 1.10 answ…
The volume of the figure is equal to the number of small cubes in the figure (in cubic - units, assuming each small cube has a volume of 1 cubic - unit). Since the figure is not c…
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find the midpoint m of the line segment joining the points c = (8, - 7)…
$(1,-1)$
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find the midpoint m of the line segment joining the points p = (-4, -7)…
$(-2,-4)$
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find the midpoint m of the line segment joining the points c = (-3, 7) …
$M=(-1,5)$
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in the figure below, b is between a and c, and c is between b and d. if…
7
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in the figure below, o is between m and p, and n is the midpoint of $ov…
12
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in the figure below, f is between e and g, and g is between f and h. if…
$14$
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in the figure below, s is between q and t, and r is the mid - point of …
$6$
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in the figure below, b is between a and c, and c is between b and d. if…
9
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13 draw, lm that bisects ∠tlc. if ∠tlc = 8x + 26 and ∠clm = 3x + 15, fi…
$x = 2$ $m\angle TLC=42$ $m\angle TLM = 21$
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review 1.1 - 1.4 geometry use the diagram to answer the following quest…
1. $\overrightarrow{KR}$ 2. 4; $\overrightarrow{RM}$, $\overrightarrow{RK}$, $\overrightarrow{RS}$, $\overrightarrow{RT}$; $\overrightarrow{RS}$ and $\overrightarrow{RT}$ 3. $\ove…
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(from unit 1, lesson 3.) 8. a, b, and c are the centers of the 3 circle…
B. \(HA\), D. \(CD\), E. \(BD\)
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7. this diagram is a straightedge and compass construction. a is the ce…
a. $\overline{AB}$ and $\overline{CD}$ b. $\overline{AC}$ and $\overline{AD}$ (or $\overline{BC}$ and $\overline{BD}$, or $\overline{AM}$ and $\overline{BM}$)
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(from unit 1, lesson 4.) 6. in the construction, a is the center of one…
Segments \(AC\), \(AD\), \(BC\), \(BD\)
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5. this diagram is a straightedge and compass construction. which trian…
The triangle formed by the intersection points of the circles (assuming circles have equal radii in the straightedge and compass construction) is equilateral because all of its si…
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3. this diagram is a straightedge and compass construction of the bisec…
The steps to construct the bisector of angle BAC are: 1. With the compass at A, draw a circle intersecting AB and AC at B and D. 2. With the compass at B, draw a circle. 3. With t…
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2. two distinct lines, ℓ and m, are each perpendicular to the same line…
B. Lines $\ell$ and $n$ are perpendicular. C. Lines $m$ and $n$ are perpendicular. D. Lines $\ell$ and $m$ are parallel.
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lesson 6 practice problems 1. which of the following constructions woul…
C. Construction of a perpendicular bisector through \(C\)
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(from unit 1, lesson 3.) the diagram was constructed with straightedge …
AB, AE, BD
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6. in this diagram, line segment cd is the perpendicular bisector of li…
A. \(AM = BM\) E. \(AM<AB\)
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8. starting with 2 marked points, a and b, precisely describe the strai…
1. Set compass radius to $AB$, center at $A$ and draw a circle. 2. Keep compass radius, center at $B$ and draw a circle. 3. Use straightedge to connect $A - C$, $C - B$, $B - D$, …
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4. line segment cd is the perpendicular bisector of line segment ab. is…
No
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2. a, b, and c are the centers of the 3 circles. how many equilateral t…
10
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lesson 4 practice problems 1. this diagram is a straightedge and compas…
We know \(\triangle ABC\) is equilateral because \(AC = AB\) (radii of circle centered at \(A\)), \(BC = AB\) (radii of circle centered at \(B\)), and by the transitive property \…
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8. here is a diagram of a straightedge and compass construction. c is t…
Since \(CB\) and \(CD\) are radii of the same circle (the circle with center \(C\)), by the property that all radii of a circle have the same length, the length of segment \(CB\) …
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classifying polygons by attributes mastery check english which shapes h…
The red square, the purple rectangle
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classifying polygons by attributes mastery check drag the shapes with e…
The first (orange - colored) hexagon shape.
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classifying polygons by attributes mastery check drag the shapes with e…
The orange hexagon
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classifying polygons by attributes mastery check which shapes have exac…
The first, fourth and fifth shapes (the pink, blue and pink - colored pentagons)
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classifying polygons by attributes mastery check drag all the pentagons…
The second, third, and fifth shapes should be dragged to the box.
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identifying and classifying angles mastery check how many obtuse angles…
D. 8
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identifying and classifying angles mastery check type the number of acu…
3
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identifying and classifying angles mastery check how many right angles …
B. 3
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identifying and classifying angles mastery check how many obtuse angles…
B. 3
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identifying and classifying angles mastery check how many acute angles …
2
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identify points, lines, segments, rays mastery check name the figure. a…
C. angle CBA
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identify points, lines, segments, rays mastery check name the figure. a…
A. ray CD
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identify points, lines, segments, rays mastery check name the figure. a…
B. line segment CD
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identify points, lines, segments, rays mastery check what type of figur…
B. line
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identify points, lines, segments, rays mastery check name the figure. a…
C. point L
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7. a sheet of paper with points a and b is folded so that a and b match…
The crease is the perpendicular bisector of segment AB because any point on the crease is equidistant from A and B, and by the conjecture, the set of equidistant - points is the p…
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a conditional statement is given below. give the converse, contrapositi…
Converse: False Inverse: False Contrapositive: True
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6. ab⊥cd in this diagram, line segment cd is the perpendicular bisector…
Point M is the same distance from both points A and B because it lies on the perpendicular bisector of AB, and by the property of the perpendicular bisector, any point on it is eq…
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sv.1 set basics - homework score: 12/50 answered: 6/20 question 7 which…
The set of words in the Oxford English Dictionary, $\{5,10,15,\ldots,95,100\}$
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(from unit 1, lesson 4.) 4. a, b, and c are the centers of the three ci…
A. \(AB\)
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source: lucius flavius arrianus, the campaigns of alexander, circa 130 …
1. To show solidarity with his troops and boost their morale. 2. Reward for loyalty; ordered execution due to superstitious beliefs based on prophecies. 3. His self - sacrifice an…
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12. the carousel at the county fair makes 3 revolutions per minute. a) …
a) $7.07$ ft/sec b) Approximately $9.87$ ft c) $3.97$ ft/sec
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solve the inequality and graph the solution on the line provided. 4x + …
Inequality Notation: $x < - 4$ Number Line: Draw an open - circle at - 4 on the number line and shade the line to the left of - 4.
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solve the inequality and graph the solution on the line provided. -7 + …
Inequality Notation: $x\leq - 1$ Number Line: Mark a closed - circle at - 1 (because the inequality is $\leq$) and shade the line to the left of - 1.
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44. choose the sentence that is written correctly. a. alice received pe…
44. D. stationery 45. C. fare 46. B. whether
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in which activity is the use of a compass to draw circles and arcs part…
1. c. Constructing bisectors 2. a. \(22^{\circ}\) 3. b. They ensure the creation of a 90 - degree angle 4. a. Structuring circuit board layouts
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what role do angles play in structural engineering? a. they determine c…
1. d. They influence structural stability 2. b. Draw the angle to be bisected 3. d. Right angle 4. a. Determining the height of a building 5. d. To divide angles equally for symme…
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1. construct the perpendicular bisector of 1. 2. 3. ii. bisect side $ov…
Follow the above - described geometric construction steps for each of the line segments and the side of the triangle to complete the tasks.
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a line that divides an angle into two equal parts is called an a right …
1. angle - bisector 2. 90 3. Intersect Two Objects 4. compass 5. right 6. constant 7. protractor 8. perpendicular
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equivalent ratios: 2π radians = 360° = 1 revolution = circumference 2πr…
Example 6a: $18.6\pi$ rad/sec Example 6b: $\frac{279\pi}{2}\approx438.25$ in/sec Example 7a: $160\pi$ rad/sec Example 7b: $\frac{580\pi}{12}\approx151.84$ ft/sec Example 8: $\appr…
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hs - manore - geometry a | quiz 1 8. what is typically the first elemen…
8. b. The diagram 9. c. They are congruent 10. a. 70° 11. No correct option with 65° given. 12. a. Flowchart proof 13. No correct answer based on analysis 14. b. 20
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1 an interior designer is creating a quadrilateral coffee table with ve…
1. c. Opposite sides are congruent 2. a. 45° 3. c. Two - column proof 4. a. Diagonals bisect each other 5. b. 75° 6. c. supplementary 7. b. It is equidistant from the two endpoint…
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practice a making pronouns and antecedents agree read each sentence. th…
1. their 2. their 3. their 4. its 5. their
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#8 is a triangle with vertices g(-5, 6), h(8, 5), and k(0, 10) a right …
No
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which angles are adjacent angles? ∠kli and ∠jig ∠kli and ∠jil ∠kli and …
$\angle KLI$ and $\angle MLI$
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which angles are alternate exterior angles? ∠edb and ∠hgd ∠edb and ∠fgi…
\(\angle EDB\) and \(\angle FGI\)
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which angles are adjacent angles? ∠fec and ∠ghe ∠fec and ∠ihj ∠fec and …
∠FEC and ∠DEC
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graph the image of square tuvw after a reflection over the y - axis.
Graph the square with vertices $T'(7,4)$, $U'(3,4)$, $V'(3,8)$, $W'(7,8)$
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which angles are adjacent angles? ∠fec and ∠ghe ∠fec and ∠ihj ∠fec and …
$\angle FEC$ and $\angle DEC$
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which angles are alternate exterior angles? ∠hge and ∠fgj ∠hge and ∠ij …
∠HGE and ∠FGJ
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which are alternate exterior angles? ∠hge and ∠fgj ∠hge and ∠ij g ∠hge …
$\angle HGE$ and $\angle IJG$
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question. solve the inequality and graph the solution on the line provi…
Inequality Notation: $x < - 4$ Number Line: An open - circle at - 4 and an arrow pointing to the left.
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question solve the inequality and graph the solution on the line provid…
<, 8 To graph on the number - line: Place an open circle at 8 (because the inequality is strict, $x$ cannot equal 8) and draw an arrow to the left to represent all the numbers les…
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question 6 0.5 pts the triangle shirtwaist fire was significant because…
It led to workplace safety laws and codes
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question solve the inequality and graph the solution on the line provid…
Inequality Notation: $x < 4$ On the number - line, draw an open circle at 4 (since $x$ is less than 4, not less than or equal to 4) and shade the line to the left of 4.
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which angles are alternate interior angles? ∠rqn and ∠mnl ∠mnq and ∠rqn…
$\angle MNQ$ and $\angle RQN$
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which angles are alternate interior angles? ∠hil and ∠mli ∠kln and ∠jig…
∠HIL and ∠MLI
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rt and uw are parallel lines. which angles are alternate interior angle…
$\angle UVS$ and $\angle TSV$
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question solve the inequality and graph the solution on the line provid…
$x\geq - 5$ To graph on the number - line, place a closed circle at - 5 (because the inequality is $\geq$) and draw an arrow to the right.
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km and np are parallel lines. which angles are corresponding angles? ∠n…
∠NOL and ∠KLJ
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question. solve the inequality and graph the solution on the line provi…
Inequality Notation: $x > -1$ For the number - line: Draw an open circle at - 1 (since the inequality is strict, i.e., $x$ is greater than - 1 not greater than or equal to - 1) an…
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which angles are corresponding angles? ∠opr and ∠lmp ∠opr and ∠nmp ∠opr…
∠OPR and ∠NMK
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question solve the inequality and graph the solution on the line provid…
Inequality Notation: $x\geq - 8$ Number Line: Mark a closed - circle at - 8 (because of $\geq$) and shade to the right.
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mo and pr are parallel lines. which angles are corresponding angles? ∠p…
$\angle PQS$ and $\angle MNQ$
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question solve the inequality and graph the solution on the line provid…
Inequality Notation: $x\geq7$ For the number - line: Plot a closed circle at 7 (because the inequality is $\geq$) and draw a line to the right of 7.
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question solve the inequality and graph the solution on the line provid…
Inequality Notation: $x>5$ Number Line: Open - circle at 5 and a line extending to the right.
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graph the image of rectangle klmn after a reflection over the x - axis.
Plot the points obtained by changing the sign of the $y -$coordinates of the vertices of rectangle $KLMN$ and connect them to form the reflected rectangle.
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math and graphing tutorial the slope of the orange line between points …
The slope of the orange line between points A and B is 20, and the slope of the blue line between points C and D is 7.5. The mathematical slope of the steeper line is greater than…
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graph the image of △qrs after a reflection over the x - axis.
Graph the points $Q'(0,4)$, $R'(0,3)$ and $S'(9,2)$ and connect them to get the reflected triangle.
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look at this shape: which image shows a rotation?
C
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math and graphing tutorial the area of the shaded quadrilateral is the …
150 thousand dollars
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look at this shape: which image shows a rotation? a b c
B. The second image