幾何
三角形、円、座標幾何、証明問題。
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the band teacher seats students into groups by the instruments they pla…
70°
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what are the base and height of the original parallelogram? to scale ba…
Base: 5 cm, Height: 3 cm
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what is a reflection rule that maps each triangle and its image? the re…
The reflection rule is \(r_t(x,y)=(y,x)\), where the equation of line \(t\) is \(y = x\)
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this parallelogram is a scaled copy. it was scaled by a factor of $\fra…
2
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\c\ stands for the __________. a circle b cost what is the equation? a …
1. B. cost 2. A. $C = 1.25t + 18$ 3. C. $\$23$
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find the slope of bc. b(-1,3) a(-4,0) c(3,1) d(0,-1) a. -2 b. -1/2 c. -…
B. -1/2
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6. find the volume and surface area of the cone if the height is 17m an…
Volume: $\frac{425\pi}{3}m^{3}\approx445.05m^{3}$, Surface Area: $5\pi\times22.72m^{2}\approx357.08m^{2}$
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what is the length of $overline{ac}$? round to the nearest tenth. a 55°…
10.5 m
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if vx = wz = 40 cm and m∠zvx = m∠xwz = 22°. can △vzx and △wxz be proven…
Yes, along with the given information, $\overline{ZX}\cong\overline{ZX}$ by the reflexive property.
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are ab and cd parallel? a (-4,1) b(-1,3) c(3,1) d(0,-1) a. yes b. no
A. yes
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two rigid transformations are used to map △abc to △xyz. the first is a …
C. a rotation about point A
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triangles rqs and ntv have the following characteristics: right angles …
No, it is necessary to know that another set of corresponding sides is congruent.
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write and solve two - step inequalities (homework) solve each inequalit…
The solution of the inequality \(4x + 15\leq27\) is \(x\leq3\). On a number line, we draw a closed circle at 3 (because the inequality includes equality) and shade to the left of …
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how can a translation and a rotation be used to map △hjk to △lmn? trans…
Translate $H$ to $L$ and rotate about $H$ until $\overline{HK}$ lies on the line containing $\overline{LM}$.
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value: 1 find the slope of ab. a (-4,1) b(-1,3) c (3,1) d(1,-1) a. 2/3 …
A. 2/3
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how can △wxy be mapped to △mnq? translate vertex w to vertex m, then re…
$\overline{WY}$
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describe the pattern. each regular polygon has one more side than the p…
Each regular polygon has one more side than the previous figure.
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value: 1 is point z the mid - point of $overline{xy}$? $x(-2.4,3)$ $z(1…
B. No. The midpoint of $\overline{XY}$ is $(1.2,2.8)$ (Note: There is a calculation error in option B, the correct mid - point is $(0.9,2.8)$ but among the given options, the answ…
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problem 7 part 1: spiral review here is an unlabeled rectangle and seve…
B, E, H
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select the counterexample that shows that the conjecture is false. conj…
Both angles could be right angles.
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a triangle in the coordinate plane has vertices r(-2, 2), s(1, -1), and…
$6 + 3\sqrt{2}$
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given △abc and its reflection image △abc find the line of reflection. d…
The line of reflection is $x = 4$.
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blem 6 on a blueprint, the living room is 2.1 inches wide. the blueprin…
1.4 inches
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if cd bisects ∠acd, what additional information could be used to prove …
\(\triangle ACD\) is isosceles with base \(AD\), \(CD = 52\mathrm{cm}\)
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find a single expression that represents the area of the outer ring of …
A. \(18x^{2}-12x - 6\)
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the side length of the square shown is tripled. 3 cm which percent of i…
The percent of increase for the area is greater. It is 600% greater.
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two rigid transformations are used to map △hjk to △lmn. the first is a …
a rotation about point H
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2. a triangle in the coordinate plane has vertices d(-5, 8), e(-2, 3), …
$\sqrt{34}+8$
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a right triangle has a 30° angle. the leg adjacent to the 30° angle mea…
14.4 in.
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underline the main verb in each sentence. circle the helping verb. 1. n…
1. Helping verb: will, Main verb: eat 2. Helping verb: is, Main verb: walking 3. Helping verb: are, Main verb: sleeping 4. Helping verb: had, Main verb: gone 5. Helping verb: have…
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suppose line h is the line with equation y = - 1. given a(7, - 4), b(6,…
$A'(7,2)$ $B'(6,-6)$ $C'(-1,4)$
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underline the main verb in each sentence. circle the helping verb. 1. n…
1. Main verb: eat; Helping verb: will 2. Main verb: walking; Helping verb: is 3. Main verb: sleeping; Helping verb: are 4. Main verb: gone; Helping verb: had 5. Main verb: run; He…
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suppose line g is the line with equation y = x. given a(9, - 5), b(6,4)…
$A'(-5,9)$
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find the slope between the two points. then identify the line that has …
B. $y = 3x-2$
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8. does the graph below have an inverse? why? 9. use the graph of f(x) …
8. Yes. Because the function passes the horizontal line test (is one - to - one). 9. To graph the inverse, take points on \(y = f(x)\), swap \(x\) and \(y\) coordinates and plot t…
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the vertices of △abc are a( - 5,4), b( - 2,3), and c( - 4,2). if △abc i…
$(-4,-4)$
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value: 1 find the slope between the two points. then identify the line …
A. $y=\frac{1}{4}x + 3$
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find the surface area and volume of a sphere where the diameter is 14
Surface area: $196\pi$, Volume: $\frac{1372\pi}{3}$
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a side of the triangle below has been extended to form an exterior angl…
\(54^{\circ}\)
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the cuboid oabcdefg is such that oa = 8, oc = 9, and od = 4. a lies on …
1. (8,9,0) 2. (0,0,4) 3. $\sqrt{161}$ 4. (4,$\frac{9}{2}$,2)
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find the area and perimeter of the triangle below. select the two answe…
a. $A = 12.5$ e. $P=16.2$
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the cuboid oabcdefg is such that oa = 8, oc = 9, and od = 4. a lies on …
1. (8,9,0) 2. (0,0,4) 3. $\sqrt{161}$ 4. (4,$\frac{9}{2}$,2)
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a side of the triangle below has been extended to form an exterior angl…
$115$
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answer attempt 1 out of 2 $x = $ submit answer
\(x = 8\)
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find the perimeter of the quadrilateral. round to the nearest tenth if …
b. 17.8
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answer attempt 1 out of 2 $x = $ submit answer
$x = 22$
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the measures of the angles of a triangle are shown in the figure below.…
\(x = 24\)
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find the perimeter of the quadrilateral. round to the nearest tenth if …
C. 21
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highlight the hypothesis by selecting the words in the conditional stat…
Hypothesis: two lines form vertical angles Conclusion: they intersect
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find the area of the quadrilateral. a. 24 b. 8 c. 10 d. 20
A. 24
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value: 2 find the perimeter of the quadrilateral. o a. 24 o b. 6 o c. 1…
d. 20
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use the given line and the point not on the line to answer the question…
D. (0, -2)
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interactive practice: perform and describe transformations involving di…
\(A''(4,-2)\), \(B''(4,-8)\), \(C''(8,-8)\), \(D''(8,-2)\)
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jose guajardo practice! justify each statement below using a property o…
7. Transitive Property of Congruence 8. Subtraction Property of Equality 9. Substitution Property of Equality 10. Definition of Midpoint 11. Definition of Congruence 12. Subtracti…
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29. a contractor is building a patio in the shape of a square. the pati…
A. about 30 ft
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a. draw the rectangle(s) you can make using two squares.
A rectangle with length twice the side length of the squares and width equal to the side length of the squares (formed by placing two squares side by side).
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what is the midpoint of $overline{mn}$ with endpoints $m(9, - 2)$ and $…
B. $(3.5,-4)$
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the formula for the midpoint between two points $(x_1,y_1),(x_2,y_2)$ i…
C. (-3,0)
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look at this diagram: if (overleftrightarrow{bd}) and (overleftrightarr…
$129$
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an equilateral triangle has perimeter $p$. the length of one side is $\…
D. $\frac{1}{3}P$
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segment $overline{rt}$ has endpoints r(-3, 4) and t(-7, -3). what are t…
B. (-5, 0.5)
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question 1 - 3 δabc has vertices a(-2, 1), b(3, 2) and c(5, -1). what a…
A. A'(2, -1), B'(-3, -2), C'(-5, 1)
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look at this diagram: if $overleftrightarrow{km}$ and $overleftrightarr…
$61$
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what composition of transformation is being demonstrated in the graph b…
Rotation $180^{\circ}$ around the origin, then reflection across the $y$-axis.
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segment $overline{rt}$ has endpoints r(1, 1) and t(-7, -2). what are th…
B. (-3,-0.5)
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question 1 - 3 △abc has vertices a(-2, 1), b(3, 2) and c(5, -1). what a…
A. $A'(2,-1),B'(-3,-2),C'(-5,1)$
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look at this diagram: if $overleftrightarrow{oq}$ and $overleftrightarr…
$46$
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practice describing single rigid transformations in the coordinate plan…
1. a. Reflect figure A across the y - axis to map it onto figure A'. b. A rotation would not map figure A onto figure A'. Rotation changes the orientation of a figure, and figure …
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4. it is estimated that over twenty million pounds of candy corn are so…
The US candy industry has significant production and sales of candy corn, Tootsie Rolls, and an extremely large production of chocolate each year. An appropriate title: The Vast S…
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which coordinate for points a and b would help prove that lines ab and …
A':$(p,m)$ and B':$(z,-w)$
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look at this diagram: if $overleftrightarrow{np}$ and $overleftrightarr…
$63$
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find the angles marked with small letters in the diagrams below.
$49^{\circ}$
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choose the notation below that describes the translation. (x,y)→(x - 3,…
\((x,y)\to(x - 3,y - 4)\)
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the formula for the mid - point between two points $(x_1,y_1),(x_2,y_2)…
A. $(6.5,6)$
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using the equation a = 3r² and records areas of circles with different …
The relation is a function because each input (radius) corresponds to exactly one output (area).
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which of the following describes the transformation from △abc→△abc? ref…
90° counterclockwise rotation, then reflection over x - axis
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look at this diagram: if $overleftrightarrow{fh}$ and $overleftrightarr…
$111$
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look at this diagram: if $overleftrightarrow{hj}$ and $overleftrightarr…
$67$
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look at this diagram: if $overleftrightarrow{bd}$ and $overleftrightarr…
$66$
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problem 1 ali and kiana buried a treasure together on their schools fie…
1 inches to 50 feet 2 inches to 100 feet
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look at this diagram: if $overleftrightarrow{tv}$ and $overleftrightarr…
$61$
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look at this diagram: if $overleftrightarrow{hj}$ and $overleftrightarr…
$59$
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list the coordinates of the vertices of figure abcd. original after dil…
$C'(3,-8)$
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a scalene triangle is given with side lengths $(2x^{2}+3),(1 + 4x)$ and…
B. $5x^{2}+4x + 6$
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statements reasons $mparallel n$ given $mangle1 = 120^{circ}$ $angle5co…
Corresponding angles of parallel lines are congruent.
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list the coordinates of the vertices of figure abcd. original after dil…
$A'(1,-2), B'(1,-8), C'(3,-8), D'(3,-2)$
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a regular hexagon has side length 3x + 5. select all of the expressions…
A. \(18x + 30\), E. \(6(3x + 5)\)
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details no additional details were added for this assignment. $m\\angle…
Linear Pair Postulate
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a dart is thrown randomly and lands within the square below. find the p…
B. 0.11
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additional details were added for this assignment. statements reasons m…
$m\angle6 = 60^{\circ}$
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a dart is thrown randomly and lands within the square below. find the p…
B. 0.26
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write the equation of the line using the dropdowns.
$y = 70$
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a dart is thrown randomly and lands within the square below. find the p…
b. 0.26
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identifying points on a parallel line which points could be on the line…
(-3,5), (3,2), (5,1)
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leila uses the photo app to resize a photo of her dog, represented by f…
$(-4,8)$
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4 mm × 4 mm × 4 mm = (square) (mm^{3})
64
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what is the area of triangle ghj? 12 square units 7 square units 6 squa…
6 square units
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are the slopes below parallel, perpendicular, or intersecting? line a: …
Perpendicular
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in this figure, $overline{ab}paralleloverline{cd}$ and $mangle4 = 85^{c…
$85$
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what is the area of parallelogram abcd? 25 square units 16 square units…
20 square units