幾何
三角形、円、座標幾何、証明問題。
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6. is △xyz a scale drawing of △rst? explain how you know.
Yes, $\triangle XYZ$ is a scale - drawing of $\triangle RST$ because the ratios of the corresponding sides are equal.
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1. ishaan is drawing octagon (q) and its image (q) in the coordinate pl…
a. Two ways: - Translation: Move rectangle ABCD down (or up/left/right) and label new vertices accordingly. For example, if moving down 5 units, if A=(2,4), A'=(2, - 1) etc. - Ref…
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point a is located at (6, -2) on the coordinate plane. point a is refle…
$A'(-6,-2)$
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point j is located at (-5, -3) on the coordinate plane. point j is refl…
$(5,3)$
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4. in the figures shown, △def is a scale drawing of △abc. a. is △def an…
a. Reduction b. 3 c. $\frac{1}{4}$ 5. Scale factor: $\frac{2}{3}$, Reduction
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point c is located at (-6, -1) on the coordinate plane. point c is refl…
$(-6,1)$
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7. (12 pts) in the diagram below, $overrightarrow{yx}$ and $overrightar…
$m\angle AYC = 90^{\circ}$
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this is a 3) triangular prism 4) triangular pyramid 5) square pyramid
4) triangular pyramid
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6. (7 pts) the diagram below is given, where four rays with a common en…
m∠1 + m∠2 + m∠3 + m∠4 = 360 is proven by the fact that the sum of angles around a point is 360 degrees.
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2. (7 pts) prove: if (a - b - c), (b - c - d), and (a - b - d), then (a…
Proved that if \(A - B - C\), \(B - C - D\), and \(A - B - D\), then \(A - C - D\). ### 3.
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find the perimeter of the figure below. notice that one side length is …
56 ft
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find the perimeter of the figure below. notice that one side length is …
48 cm
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which transformation would take figure a to figure b?
A translation (upward)
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classify each figure as a line, ray, or line segment. then, show how to…
(a) Type: ray, How to write it: \(\overrightarrow{QP}\) (b) Type: line segment, How to write it: \(\overline{TU}\) (c) Type: line, How to write it: \(\overleftrightarrow{RS}\)
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rs is dilated by a scale factor of $\frac{1}{4}$ to form $rs$. $rs$ mea…
1
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choos the given definition. definition intersecting lines that form rig…
1. Perpendicular lines 2. Parallel lines 3. Line segment 4. Coplanar
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the segment below is dilated by a scale factor of 5 to form $overline{d…
60
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a figure containing ∠bcd is dilated by a scale factor of $\frac{1}{2}$ …
$124$
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choose the term that has the given definition. term definition perpendi…
1. Parallel lines: Lines that belong to the same plane and never intersect 2. Line segment: A part of a line consisting of two endpoints and all points between them 3. Coplanar: B…
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complete the equations identifying both lines of reflection that will f…
The lines of reflection are $x = 1$ and $y = 1$
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choose the term that has the given definition. | term | definition | |-…
Perpendicular lines
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a figure is rotated 90 degrees counterclockwise about the origin. which…
A. Option #1:$(x,y)\to(-y,x)$
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a quadrilateral with vertices g(-8,2), e(-5,3), o(3,0), and m(6,0) is r…
The image of M is $(0,-6)$.
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find the perimeter of the figure below. notice that one side length is …
56 yd
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the segment below is dilated by a scale factor of 2 to form $overline{u…
96
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what composition transformation rule has △lmn, l(8,3), m (4,6), and n (…
D. a reflection over the y - axis and a move to the left by 2 and down by 6
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a circle measures 360 degrees. if this circle were marked with numbers …
210 degrees
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spiral review reflect the triangle across the y - axis and draw the ima…
Use the Polygon Tool to plot vertices $(6,6)$, $(2,8)$, $(4,2)$ and draw the triangle.
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use the graph to estimate the x - and y - intercepts of the function an…
x - intercept: $x = 0$; y - intercept: $y = 0$; positive: $x>0$; negative: $x < 0$
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the point p (4,2) is rotate to become p(-2,4). describe the rotation by…
90° rotation (counter - clockwise) (Note: In the multiple - choice context, the correct option is the one with 90° rotation. Since the rule for 90° counter - clockwise rotation ma…
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the coordinate point q (0,-8) is reflected over the y - axis. identify …
$(0,-8)$
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△fun is reflected over x = -1. what are the coordinates for n after a r…
$(1,0)$
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triangle pqr is reflected over a vertical line of reflection to create …
$(-2,7)$
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1-36 do problem 1-37 before this one. write an expression for the area …
a.) For the first rectangle: \(8x^{2}-22x - 21\) a.) For the second rectangle: \(3x^{2}+24x\)
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a point is translated on the coordinate plane from (5, -3) to (5,7). jo…
10
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jarvis wants to translate rectangle abdc horizontally by -4 and vertica…
(-11, 0)
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spiral review reflect the triangle across the y - axis and draw the ima…
Draw a triangle with vertices $(6,6)$, $(4,8)$ and $(6,2)$ using the Polygon Tool.
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what kind of translation had been done to the quadrilateral abcd? (1 po…
Quadrilateral ABCD had been translated 9 units to the right and 3 units down.
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spiral review reflect the triangle across the y - axis and draw the ima…
Draw a triangle with vertices at the points obtained after applying the reflection rule across the $y$-axis (e.g., for assumed vertices above, draw triangle with vertices $(6,6)$,…
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reflect the figure over the line y = x + 4. plot all of the points of t…
# Explanation: ## Step1: Recall reflection formula The formula to reflect a point $(x_0,y_0)$ over the line $y = x + c$ is obtained by first translating the line to the origin (su…
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proofreading: words with /ou/, /ô/, /oi/ read the passage. circle the b…
1. A. Change pownce to pounce 2. F. Change aukward to awkward
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now write the slope of the line of reflection and any dotted line. slop…
Slope of one of the dotted lines: $\frac{1}{2}$ Slope of the line of reflection: $\frac{1}{2}$
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an equilateral triangle has perimeter (p). the length of one side is (\…
$\frac{1}{3}P$
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what is the value of b?
50
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what is the value of r? 30°
60
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the measure of an angle is 16°. what is the measure of its complementar…
$74$
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what is the value of k? 80°
\(80\)
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the measure of an angle is 173°. what is the measure of its supplementa…
$7$
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the measure of an angle is 26°. what is the measure of its complementar…
64
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tuesday 1. identify if the sentence below is active or passive. then re…
1. Active - voice sentence: The custodian repaired the classroom door. Passive - voice sentence: The classroom door was repaired by the custodian. 2. Misspelled word: abreviate. C…
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what is the value of g?
\(50\)
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review common and proper nouns a common noun is the name of a person, p…
1. Circle "lighthouse", underline "North Carolina" 2. Circle "sailors", underline "Herbert Greenley" 3. Circle "storms" 4. Circle "building", underline "Greenley" 5. lusitania -> …
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the measure of an angle is 56°. what is the measure of its complementar…
$34$
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what is the value of b? 140° b
40
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the measure of an angle is 102°. what is the measure of its supplementa…
78
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which angles are supplementary to each other? ∠3 and ∠2 ∠1 and ∠3 ∠1 an…
∠1 and ∠3
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geometry the solid portion of the graph represents the relationship bet…
The value of y (area) is approximately 25 \(cm^{2}\). The symmetry of the graph tells us that for a non - maximum area value, there are two different widths of the rectangle that …
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fill in the area of the missing dimensions and areas of the rectangles …
a. area = 220 b. area = 84
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1. combine the sentences below into one sentence. women in the navaho t…
1. Women in the Navaho tribe prepared all the food and also cared for the children. 2. When we searched the school for damage, we discovered a broken window. 3. The distance north…
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line 3 positive negative zero undefined
Positive
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10. find the measure of y.
$145^{\circ}$
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for each line, determine wheth line 1 positive negative zero undefined …
Undefined
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question 4 if an artist uses bright light shining in from a window to a…
Question 4: C. color Question 5: A. line
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9. find the measure of x. 117° 100° 105° 115° x° 105° 117° 103° 110°
$103^{\circ}$
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write an expression with powers to determine the difference between the…
384 mm²
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1. find the measure of y. 120° 85° 53° 85° 122° 102° 138°
$102^{\circ}$
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7. find the measure of z. regular pentagon 120° 108° 135° 144°
$108^{\circ}$
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6. what is the sum of the measures of the interior angles of polygon qr…
$360^{\circ}$
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the vector v has an initial point at (3, - 2) and a terminal point at (…
The vector $\vec{v}=\langle - 4,-6 angle$ and it can be plotted with initial point $(3,-2)$ and terminal point $(-1,-8)$ as described above.
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while performing a piece of music, adele strikes the cymbals every 2 be…
14
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5. which please describes the figure? convex nonagon convex octagon con…
convex nonagon
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direct objects underline the action verb in each sentence. circle the d…
1. Underlined action - verb: joined; Circled direct object: the Red Cross 2. Underlined action - verb: invented; Circled direct object: a bamboo incubator 3. Underlined action - v…
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which angles are supplementary to each other? ∠6 and ∠1 ∠12 and ∠5 ∠8 a…
∠12 and ∠5
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3 translate figure a 8 units to the left to form figure a’. then reflec…
Yes, figure A is congruent to figure A'' because translations and reflections are rigid motions that preserve the size and shape of the figure.
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4. find the measure of y. 110° z° y° 100° 87° 8° 110° 100° 107°
103°
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3. which phrase best describes this polygon? convex dodecagon concave d…
concave dodecagon
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which angles are supplementary to each other? ∠3 and ∠7 ∠9 and ∠10 ∠7 a…
∠9 and ∠10
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in the figure below, l || m. find x.
\(x = 45\)
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2. find the measure of z. regular octagon 135° 120° 144°
$135^{\circ}$
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2 reflect △def across the y - axis. then rotate △def 90° counterclockwi…
The coordinates of $D''$ are $(2,5)$, the coordinates of $E''$ are $(2,0)$ and the coordinates of $F''$ are $(6,3)$.
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1. which list names the sides of polygon abcd? ab, ac, ad, bd bc, ba, d…
The sides of polygon $ABCD$ are $\overline{AB}$, $\overline{BC}$, $\overline{CD}$, $\overline{DA}$. Among the given options, the correct one is the one that lists these four segme…
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question 6 of 10 which of these phrases is an example of understatement…
D. The brand new Mercedes I won in a raffle is nice.
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your challenge tangram is an ancient chinese puzzle. the puzzle has sev…
Tan B: rotate 90 degrees counter - clockwise around the origin. Tan C: reflect over the y - axis. Tan D: translate 4 units to the right and 6 units up. Tan E: rotate 180 degrees a…
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which angles are complementary to each other? ∠4 and ∠6 ∠3 and ∠1 ∠5 an…
∠5 and ∠6
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which angle is supplementary to ∠1?
∠3
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which angles are supplementary to each other? ∠16 and ∠15 ∠8 and ∠16 ∠1…
∠16 and ∠15
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which angles are supplementary to each other? ∠2 and ∠3 ∠11 and ∠8 ∠11 …
∠2 and ∠3
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what is the value of c? 6c + 6° 4c 43° write your answer as an integer …
$18.5$
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what is the value of p? write your answer as an integer or as a decimal…
27
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given ∠abc and ∠def are supplementary and ∠abc and ∠ghj are supplementa…
D. \(m\angle DEF = m\angle GHJ\)
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what is an angle that is supplementary to ∠5?
∠6 or ∠8
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what is the value of u? write your answer as an integer or as a decimal…
$2.3$
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which angles are supplementary to each other? ∠3 and ∠4 ∠2 and ∠1 ∠4 an…
\(\angle5\) and \(\angle1\)
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what is the value of x? write your answer as an integer or as a decimal…
18
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question 7 a point has the coordinates (0, k). which reflection of the …
B. a reflection of the point across the y - axis
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which angle is complementary to ∠4?
∠5
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what is the value of w? write your answer as an integer or as a decimal…
7
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which angle is complementary to ∠4?
∠3
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what is the value of y? write your answer as an integer or as a decimal…
$27$
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21 multiple choice 1 point 21. use the picture above to identify the sp…
c) Corresponding angles