幾何
三角形、圓、解析幾何與證明題。
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question 2 of 10 a circle has an area of 30 in². what is the area of a …
B. $5\ in^{2}$
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ex7: find the values of x and y that make the segments shown below bise…
$x =-\frac{13}{7},y =-\frac{26}{7}$
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example 3 refer to the figure. 12 name two adjacent angles. 13 name two…
12. $\angle MSQ$ and $\angle QSR$ 13. $\angle MQR$ and $\angle PQN$ 14. $180^{\circ}$
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question 10 of 10 in the formula for the area of a circle, what gets mu…
A. $r^{2}$
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question 9 of 10 what is the approximate area of a circle with a diamet…
A. 254 in²
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what is the approximate area of the circle shown below? a. 962 m² b. 11…
A. 962 m²
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what is the approximate area of the circle shown below? a. 278 cm² b. 6…
B. 69 $cm^{2}$
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if m∠nsm = 100°, then what is m∠msp?
$80^{\circ}$
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question 6 of 10 what is the approximate area of the circle shown below…
A. $908$ $cm^{2}$
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question 5 of 10 what is the approximate area of a circle with a radius…
C. $707$ $ft^{2}$
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question 9 of 10 what is the approximate area of the circle shown below…
A. $1662\ cm^{2}$
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which angle number represents the linear pair of ∠sxt?
2
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use the drop - down menus to complete the statements. therefore, △jkl i…
Therefore, \(\triangle JKL\) is not a right - triangle. Applying the same method, \(\triangle ABC\) is a right - triangle.
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question 2 of 10 if a circle has a diameter of 30 meters, which express…
D. $15^{2}\cdot\pi$
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question 1 of 10 what is the approximate area of the circle shown below…
A. $55.4$ in$^{2}$
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1-46. look at the representations shown in the math notes box for this …
For the circles: Fraction is $\frac{1}{4}$, Percent is 25%. For the triangles: Fraction is $\frac{3}{4}$, Percent is 75%.
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question 10 of 10 which best describes how to find the length of an arc…
B. Divide the arc's degree measure by 360°, then multiply by the circumference of the circle.
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what are the coordinates of the point on the directed line segment from…
$(-4,-6)$
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in the diagram below, what is the approximate length of the minor - arc…
B. 23.6 cm
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the circumference of ⊙c is 72 cm. what is the length of (widehat{ab}) (…
F. 9 cm
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question 7 of 10 in the diagram below, what is the approximate length o…
A. 52 cm
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what are the coordinates of the point on the directed line segment from…
\((-1,-3)\)
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question 6 of 10 how would you find the fraction of a circle that an ar…
C. Divide the measure of the arc by 360°.
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the length of ab (the minor arc) is 20 cm. what is the circumference of…
B. 720 cm
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the points f, g, h and i all lie on the same line segment, in that orde…
18
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max has sticks of lengths 6, 7, 8, and 10 inches. he wants to make a ri…
6 in., 8 in., and 10 in.
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7. the points l, m, n and o all lie on the same line segment, in that o…
15
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the circumference of ⊙c is 56 cm. what is the length of ab⏜ (the minor …
D. 14 cm
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the length of (widehat{xy}) (the minor arc) is 48 cm. what is the circu…
C. 288 cm
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question 1 of 10 in the diagram below, what is the approximate length o…
C. 6.3 cm
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unit 1: geometry basics homework 1.4: angle addition postulate ** this …
a) B b) $\overrightarrow{BD}$, $\overrightarrow{BC}$ c) ∠ABD d) ∠FBC: Acute; ∠EBF: Obtuse; ∠ABC: Straight - angle e) $\overrightarrow{BF}$ f) 144° g) 27°
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the point is (type an ordered pair.)
(2,4)
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unit 1: geometry basics per: ____ homework 1.4: angle addition ** this …
a) B b) $\overrightarrow{BA}$, $\overrightarrow{BC}$ c) ∠ABE d) ∠FBC: Right - angle; ∠EBF: Obtuse - angle e) No clear angle bisector given f) 144° g) 63°
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question 10 of 10 if you know the circumference of a circle, which step…
C. Divide by $\pi$.
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question 9 of 10 what is the approximate circumference of the circle sh…
A. 129 cm
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given: △abc with a² + b² = c² and right △def constructed with legs a an…
We are given \(a^{2}+b^{2}=c^{2}\) for △ABC and △DEF is a right - triangle with legs \(a\) and \(b\) and hypotenuse \(n\). Since △DEF is a right - triangle, we know that \(a^{2}+b…
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question 8 of 10 a cd is shaped like a circle with a diameter of 12 cm.…
D. 38 cm
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question 7 of 10 what is the formula that relates circumference and rad…
D. $C = 2\pi r$
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what is the approximate circumference of the circle shown below? a 12.2…
C. 38.3 cm
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question 4 of 10 the distance around a circle is called the ___________…
A. circumference
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question 3 of 10 the radius of a circular park is 120 m. to the nearest…
B. 754 m
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question 2 of 10 what is the approximate circumference of the circle sh…
C. 46.5 cm
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rounded to the nearest tenth, what is the length of ln? sin(20°) = ln/8…
\(2.7\)
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question 1 of 10 if r is the radius of a circle and d is its diameter, …
C. $C = \pi d$
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point f is on line segment $overline{eg}$. given $fg = 8$, $ef = 2x + 4…
26
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question 10 of 10 what is the measure of $widehat{de}$?
C. $39^{\circ}$
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question 9 of 10 what is the measure of ∠abc? 131° 53° a. 131° b. 127° …
C. 92°
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intersecting chords form a pair of congruent, vertical angles. a. true …
A. True
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question 7 of 10 the measure of an angle formed by intersecting chords …
A. half
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question 6 of 10 what is the measure of (widehat{jk})?
A. 125°
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question 5 of 10 what is the measure of arc ac? a. 132° b. 138° c. 48° …
B. \(138^{\circ}\)
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exit ticket: agree/disagree statement \enduring issues show us that pro…
Agree
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question 4 of 10 what is the measure of ∠rst? a. 47° b. 62° c. 124° d. …
B. $62^{\circ}$
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exit ticket: agree/disagree statement \enduring issues show us that pro…
Agree
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what is the measure of ∠prq? 102° 70° a. 102° b. 172° c. 86° d. 70°
C. $86^{\circ}$
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what is the measure of ∠rst? 33° 143° a. 33° b. 88° c. 176° d. 143°
A. \(33^{\circ}\)
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one of the lines is vertical and its equation is the two lines intersec…
One of the lines is vertical and its equation is \(x = 4\). The two lines intersect in a point. The point of intersection is \((4,2)\)
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which expression gives the measure of ∠xyz? a. $\frac{1}{2}(110^{circ}+…
D. $\frac{1}{2}(110^{\circ}-42^{\circ})$
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question 10 of 10 an inscribed angle is an angle formed by two radii th…
B. False
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what is the measure of $overparen{jkl}$? 70° a. 110° b. 290° c. 220° d.…
B. 290°
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question 8 of 10 what is the measure of (widehat{jl})?
A. $168^{\circ}$
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question 7 of 10 what is the measure of ⁀def?
A. 282°
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question 6 of 10 what is the measure of ∠z? a. 36° b. 144° c. 18° d. 72°
D. $72^{\circ}$
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question 5 of 10 the measure of __________________ in a circle is half …
B. an inscribed angle
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question 4 of 10 what is the measure of ∠abc? 118° a c b a. 242° b. 118…
D. 59°
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question 3 of 10 what is the measure of ∠xyz? a. 126° b. 252° c. 63° d.…
C. 63°
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question 1 of 10 what is the measure of ∠abc?
C. \(65^{\circ}\)
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question 10 of 10 given ⊙o below, if $overparen{ab}$ and $overparen{cd}…
C. $70^{\circ}$
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question 9 of 10 two chords in the same circle are congruent if and onl…
A. True
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given ⊙o below, if ⌢gh and ⌢hj are congruent, what is the measure of ch…
A. 11.4 units
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question 7 of 10 given ⊙o below, if ⌢ab and ⌢bc are congruent, what is …
C. $115^{\circ}$
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question 6 of 10 given ⊙o below, if $widehat{ab}$ and $widehat{cd}$ are…
C. 5 units
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question 5 of 10 given ⊙o below, the arcs ⌢gh and ⌢jk must be congruent…
B. False
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question 4 of 10 given ⊙o below, the arcs ⌢wx and ⌢yz must be congruent.
A. True
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question 3 of 10 two arcs of a circle are congruent if and only if thei…
A. True
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question 2 of 10 two arcs are congruent if they have the same measure a…
A. congruent circles B. the same circle
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example #13: an angle measures three degrees less than twice the measur…
The measures of the two angles are 59 degrees and 31 degrees.
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question 1 of 10 if chord $overline{ab}$ is congruent to chord $overlin…
B. $43^{\circ}$
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question 10 of 10 what is the measure of $widehat{ar}$ in $odot o$ belo…
D. $142^{\circ}$
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question 9 of 10 an arc that lies outside of a central angle is called …
A. major arc
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question 8 of 10 what is the measure of $widehat{efg}$ in $odot o$ belo…
B. 300°
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question 7 of 10 an arc that lies between the two sides of a central an…
C. minor arc
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7. (5x + 7)° (8x - 71)° l m
$x = 26$
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6. write an equation and solve for x. equation: x =
Equation: $(x + 55)+56 + 78=180$ $x=-9$
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5. m∠jqr = 112, m∠pqr = 165. write an equation then find m∠pqj. equatio…
Equation: \(m\angle PQJ=m\angle PQR - m\angle JQR\) \(m\angle PQJ = 53\)
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what are the correct trigonometric ratios that could be used to determi…
$\sin(20^{\circ})=\frac{LN}{8}$, $\cos(70^{\circ})=\frac{LN}{8}$
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question 6 of 10 an angle whose vertex is at the center of a circle is …
A. True
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question 5 of 10 the sides of a central angle are two ____ of the circl…
A. radii
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given ⊙o below, is ⌢ab a minor arc, a major arc, or a semicircle? a. mi…
A. Minor arc
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question 3 of 10 given ⊙q below, is ⌢yor a minor arc, a major arc, or a…
B. Minor arc
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question 2 of 10 what angle measure does a semicircle have? a. 360° b. …
C. $180^{\circ}$
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question 1 of 10 given ⊙o below, is ⌢rs a minor arc, a major arc, or a …
C. Semicircle
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question 10 of 10 the chord (overline{bc}) is a diameter of (odot o). a…
A. True
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question 8 of 10 the blue segment below is a radius of ⊙o. what is the …
B. 14.6 units
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question 7 of 10 the blue segment below is a radius of $odot o$. what i…
A. 21.2 units
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question 6 of 10 the chord $overline{ce}$ is a diameter of $odot o$.
A. True
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5. (mangle jqr = 112), (mangle pqr = 165). write an equation then find …
Equation: $m\angle PQJ=m\angle PQR - m\angle JQR$ $m\angle PQJ = 53$
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which of the following segments is a diameter of ⊙o? a. (overline{od}) …
C. $\overline{AC}$
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points c, d, and g lie on plane x. points e and f lie on plane y. which…
C. The line that can be drawn through points C and G would lie in plane X. D. The line that can be drawn through points E and F would lie in plane Y.
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question 4 of 10 which best describes the diameter of a circle? a. the …
B. The distance across the middle of the circle