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#26 Unit 7a Similarity and Right Triangle Review part 2 cloned 5/12/2020

By James Parson
Last updated over 4 years ago
38 Questions
1.

The orange shape is a dilation of the black shape. What is the scale factor of the dilation? (orange rectangle:black rectangle) Page 12

2.

Determine the scale factor of the dilation that transformed triangle ABC to triangle A'B'C'. Page 12

3.

Write the coordinates of S', the image of S after a dilation with a scale factor of 1/3, centered at the origin. Page 12

4.

Write the coordinates of T', the image of T after a dilation with a scale factor of 1/3, centered at the origin. Page 12

5.

Write the coordinates of U', the image of U after a dilation with a scale factor of 1/3, centered at the origin. Page 12

6.

What is the dilation of △ ABC → △ A'B'C'? Page 12
A (0, 4) B (5,5) C (3,3)
A’ (0, 8) B’ (10, 10) C’ (6, 6)

7.

Dilate the figure △ABC by a scale factor of 2 with the origin as the center of dilation. What are the coordinates of the image?
A (2,4) B (5,6) C (6,1) Page 12

8.

What is the geometric mean of 4 and 100? Page 13

9.

What is the geometric mean of 6 and 48? Page 13

10.

Are triangles △AZE and △RBE similar? If yes, which theorem of postulate would you use to prove it? Page 14

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11.

Write a similarity statement that shows the two triangles are similar. Page 14

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12.

Are triangles △ABC and △FED similar? If yes, which theorem of postulate would you use to prove it? Page 14

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13.

Write a similarity statement that shows the two triangles are similar. Page 14

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14.

Are triangles △UGA and △EBF similar? If yes, which theorem of postulate would you use to prove it? Page 14

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15.

Error Analysis: Which solution for the value of x in the figure is not correct?

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16.

Error Analysis: Explain your response to the previous item.

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17.

TRAP ~ EZYD. Find the ratio.
Enter only a number. Use decimal form.

18.

TRAP ~ EZYD. Find the scale factor of TRAP to EZYD.

19.

If TRAP ~ EZYD. Find m∠R. Enter only a number.

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20.

TRAP ~ EZYD. Find DY.

21.

Solve for x Page 13

22.

Find the length of TU. Page 14

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23.

Find the measure of m∠C.
Page 14

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24.

Find the length of DE. Page 14

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25.

Find the length of AB. Page 14

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26.

Find the measure of m∠R. Page 14

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27.

Find the measure of m∠P. Page 14

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28.

What is the measure of d? Page 14

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29.

What is the measure of q? Page 14

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30.

What is the measure of d? Page 14

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31.

What is the measure of u? Page 14

32.

Two similar pentagons are shown. Find the value of x.

33.

Two similar pentagons are shown. Find the value of y.

34.

Two similar pentagons are shown. Find the value of z.

35.

What is the value of x? Page 15

36.

What is the value of x? Page 15

37.

What is the value of x? Page 15

38.

What is the value of x? Page 15