幾何
三角形、円、座標幾何、証明問題。
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look at this shape: which image shows a rotation? a b c
C.
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look at this shape: which image shows a rotation? a b c
B.
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look at this shape: which image shows a reflection? a b c
B.
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problem 4 describe a sequence of transformations that moves the shaded …
Translate the shaded figure 3 units to the right and 4 units down.
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question 7 of 10 abcd is rotated counterclockwise about the origin. by …
C. 90°
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which of the following statements must be true based on the diagram bel…
None of the statements are true.
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look at this shape: which image shows a translation?
A.
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look at this shape! which image shows a reflection? a b c
B.
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look at this shape: which image shows a translation? a b c a b c
A. Option A shows a translation.
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look at this shape: which image shows a rotation? a b c a b c
C. Option C
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look at this shape: which image shows a translation?
A. The first image among the options
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for safety and strength, the supports of a set of scissor steps form pa…
60
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look at this shape: which image shows a reflection?
C. Option C
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find the center and the radius of the following circle x² - 16x + y² + …
The center is $(8,-6)$. The radius is $10$.
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find the distance between the two points and the midpoint of the line s…
Distance: $\sqrt{10}$; Mid - point: $(-\frac{3}{2},\frac{5}{2})$
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20. proving a theorem complete the two - column proof for the congruent…
2. Definition of supplementary angles 3. $m\angle1 + m\angle2$ 5. $m\angle3 + m\angle1$ 6. Subtraction property of equality 7. $\angle2\cong\angle3$; Definition of congruent angle…
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the diagram below is a right rectangular prism. all the angles shown me…
Plane ADHE and plane BCGF (Other valid pairs like plane DCGH and plane FEJI, plane DAEF and plane CBKJ also exist)
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the diagram below is an oblique, or slanted, rectangular prism. not all…
Plane $OPQR$, Plane $STUV$
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what is the image of (8, - 8) after a dilation by a scale factor of 1/4…
\((2, - 2)\)
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which of the following statements must be true based on the diagram bel…
None of the statements must be true.
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is there a series of rigid transformations that could map △klp to △qnm?…
Yes, \(\triangle KLP\) can be reflected across the line containing \(\overline{KP}\) and then translated so that \(P\) is mapped to \(M\).
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look at this shape: which image shows a reflection? a b c
B.
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which of the following statements must be true based on the diagram bel…
$E$ is the midpoint of a segment in the diagram.
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which of the following statements must be true based on the diagram bel…
\(\overline{SW}\) is a segment bisector.
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look at this shape: which image shows a reflection?
B. Option B image
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look at this shape: which image shows a translation? a b c a b c
B.
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which of the following statements must be true based on the diagram bel…
$UY$ is a segment bisector.
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use reference angles to find the exact value of the following expressio…
A. $\sin\frac{5\pi}{4}=-\frac{\sqrt{2}}{2}$
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in the figure shown, t || x and k || w and m∠3 = 20. choose the list wh…
B. 7, 9, 14
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select the correct answer. which statement best defines a circle? a. th…
A. the set of all points in a plane that are the same distance from a given point called the center
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look at this diagram: if $overleftrightarrow{eg}$ and $overleftrightarr…
$58$
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look at this shape: which image shows a reflection? a b c a b c
C.
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solve for the value of e. answer attempt 2 out of 6 e = 11
$e = 10$
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look at this shape: which image shows a translation?
C. Option C
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look at this shape: which image shows a reflection? a b c
B.
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what type of lines are coplanar and do not intersect? a. parallel b. pe…
A. parallel
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two students stand 1 yard apart and measure their respective angles of …
3.0 yards
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which is the approximate measure of angle y? use the law of sines to fi…
$59^{\circ}$
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match the inequalities in the left column below with the appropriate nu…
$x\geq3$ matches the graph with a closed - circle at 3 and an arrow to the right. $x > 3$ matches the graph with an open - circle at 3 and an arrow to the right. $x<3$ matches the…
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in the given figure, which lines or segments are parallel? justify your…
# Explicación detallada: ## Paso 1: Comprender los teoremas y postulados de ángulos asociados con líneas paralelas Los ángulos internos del mismo lado son suplementarios cuando la…
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in the given figure, which lines are parallel? justify your answer. det…
A. FG||DB by the Converse of the Alternate Interior Angles Theorem
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in the given figure, which lines are parallel? justify your answer. det…
# Explicación: ## Paso 1: Comprender los teoremas de ángulos y líneas paralelas Los teoremas de ángulos alternos internos, ángulos correspondientes y ángulos internos del mismo la…
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look at this shape: which image shows a translation? a b c a b c
B
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7. the length of a rectangle is 5 less than twice its width. the perime…
7. Width: 6 meters, Length: 7 meters 8. 57 and 58 9. 71 and 73 10. 62 and 64 11. 27, 28 and 29 12. 10, 12 and 14
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which of the following statements must be true based on the diagram bel…
None of the above.
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question the midpoint of $overline{ab}$ is $m(-3,1)$. if the coordinate…
$(-7,-4)$
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what is the image of (8,0) after a dilation by a scale factor of 5 cent…
$(40,0)$
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find the length of the third side. if necessary, round to the nearest t…
24
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which pairs of figures below are congruent? congruent? yes no yes no co…
No, No, No, No
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give the location of madrid as an ordered pair (x, y).
$(x,y)=(-8,-8)$
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finding the area of a circle > find the radius of each circle. show you…
1. $r = 6$ in 2. $r = 13$ cm 3. $A=100\pi$ yd²
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lesson 3.1 checkpoint once you have completed the above problems and ch…
| Preimage ABC | Image A'B'C' | Image A''B''C'' | |----|----|----| | $A(-1,2)$ | $A'(-1,-2)$ | $A''(1,2)$ | | $B(-3,4)$ | $B'(-3,-4)$ | $B''(3,4)$ | | $C(-2,5)$ | $C'(-2,-5)$ | $C…
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which statements are true about reflections? check all that apply. an i…
An image created by a reflection will always be congruent to its pre - image. An image and its pre - image are always the same distance from the line of reflection. If a point on …
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if $overleftrightarrow{fh}$ and $overleftrightarrow{ik}$ are parallel l…
$61$
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lines m and n are parallel. find the measures of angles x, y, and z in …
$x = 50^{\circ}$, $y = 50^{\circ}$, $z = 130^{\circ}$
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in the cube shown below, which lines are parallel? select all that appl…
A. $\overrightarrow{JN}$ and $\overrightarrow{LP}$ B. $\overrightarrow{IL}$ and $\overrightarrow{NO}$ C. $\overrightarrow{KL}$ and $\overrightarrow{OP}$
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draw line(s) to show how you decomposed the figure. what is the volume …
The volume of the first figure is 80 cubic - feet and the volume of the second figure is 425 cubic - inches.
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in the given figure, which lines are parallel? justify your answer. det…
# Explicación: ## Paso 1: Comprender los teoremas de líneas paralelas Los teoremas de líneas paralelas se basan en las relaciones entre ángulos formados por una transversal. El Te…
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look at this diagram: if $overleftrightarrow{df}$ and $overleftrightarr…
$44.1$
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which angle number represents the linear pair of ∠tyw? answer attempt 1…
5
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determine a series of transformations that would map polygon abcde onto…
A dilation centered at the origin with a scale factor of 2 followed by a 180 - degree rotation about the origin.
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the law of cosines is used to find the measure of ∠z. to the nearest wh…
$51^{\circ}$
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find the length of the third side. if necessary, round to the nearest t…
$13.4$
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which pairs of figures below are congruent? congruent? yes no yes no co…
First - pair: Yes Second - pair: No Third - pair: No Fourth - pair: Yes
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write the coordinates of the vertices after a dilation with a scale fac…
$P'(-8,-8)$, $Q'(-8,8)$, $R'(8,8)$, $S'(8,-8)$
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dado m || n, encuentra el valor de x.
$x = 26$
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solve for x to the nearest tenth.
$6.9$
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solve the inequality and graph the solution. 3(4x + 1)<3 choose the cor…
C.
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the midpoint of $overline{ab}$ is $m(3, - 2)$. if the coordinates of $a…
$(-1,-7)$
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josh runs from the northwest corner to the southeast corner of a rugby …
D. No. The paths they ran created two triangles, which can be shown to be congruent by SAS. Thus by CPCTC they both ran the same distance.
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is △pqr≅△psr? explain. a. yes. pq≅ps, pr≅pr, and ∠qpr≅∠spr. thus, △pqr≅…
A. Yes. $\overline{PQ}\cong\overline{PS}$, $\overline{PR}\cong\overline{PR}$, and $\angle QPR\cong\angle SPR$. Thus, $\triangle PQR\cong\triangle PSR$ by SAS.
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what other information, if any, do you need to prove the two triangles …
B. \(GT\cong NQ\) is needed because the congruent angles need to be included between two corresponding congruent sides.
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would you use sss or sas to prove the triangles congruent? if there is …
C. The two triangles are not necessarily congruent. There is not enough information.
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what is m∠hji? justify your answer. a. △def≅△hij by sas. by cpctc, ∠dfe…
A. $\triangle DEF\cong\triangle HIJ$ by SAS. By CPCTC, $\angle DFE\cong\angle HJI$. Thus, $m\angle HJI = f$.
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if the measure of an angle is 38°, find the measure of its complement.
$52^{\circ}$
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calculate surface area within 0.1 of the unit used. use 3.14 for pi. hi…
$391.015$ $cm^{2}\leq$ surface area $\leq401.015$ $cm^{2}$
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find the missing measure. 51° x°
$51^{\circ}$
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question 23 (3 points) determine how many boxes of flooring will be nee…
224 246.4 25 For Question 24:
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find the missing measure.
51°
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who rules? types of governments. what kinds of governments exist? what …
Types of Governments: Democracy (people vote, leaders can be presidents/prime - ministers), Autocracy (one person rules, e.g., dictator), Oligarchy (small group rules, members of …
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find the missing measure. 65° 115° 125° 35° 25° exit ticket - 1.4 angle…
\(25^{\circ}\)
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what is the image of (-9, 3) after a dilation by a scale factor of 1/3 …
$(-3,1)$
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conjecture: any 2 circles in the plane are congruent. do you agree or d…
Disagree. A true conjecture: Any two circles with the same radius in the plane are congruent.
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what is the image of (0, - 3) after a dilation by a scale factor of 1/3…
\((0,-1)\)
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solve for x.
6
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1. which of these statements is true? all rhombi are regular polygons. …
All squares are regular polygons.
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question 21 (3 points) you are going to put new tile flooring in your r…
11520 in²
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solve for x
15
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question 19 (3 points) calculate volume within 0.1 of the unit used. us…
\(494.16\ cm^{3}\leq volume\leq513.96\ cm^{3}\)
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find the distance between the points (9, 2) and (3, 10). write your ans…
10
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unit 1 part 1 lesson 5 practice problems 1. this diagram is a straighte…
1. Making points \(D\) and \(A\) equidistant from \(C\) helps in using triangle - congruence (SSS) to prove the constructed line is perpendicular to \(AB\). 2. c. Line \(EF\) is t…
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find the distance between the points (8, 3) and (5, 7). write your answ…
5
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if (fg = 4x), (gh=x + 6), and (fh = 16), what is (gh)? simplify your an…
8
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use the following key to evaluate the depicted expression when x = 5. k…
$-5$
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if de = 11x, ef = 17x - 12, and df = 16, what is de? simplify your answ…
11
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if cd = 2x, de = 7, and ce = x + 10, what is ce? simplify your answer a…
$13$
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what is the least amount of information that you need to construct a tr…
3 pieces of information (either SSS, SAS, ASA or AAS)
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what additional information could be used to prove δabc ≅ δmqr using sa…
$m\angle Q = 56^{\circ}$ and $\overline{CB}\cong\overline{RQ}$; $m\angle R = 60^{\circ}$ and $\overline{AB}\cong\overline{MQ}$
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what are the x - intercepts of the graphed function? (-3, 0) and (0, 1.…
(-3, 0) and (1, 0)
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4. triangle abc is congruent to triangle edf. so, mai knows that there …
A. Angle A coincides with angle E. D. Segment BC coincides with segment DF.