Quiz about Unit 6 - Similarity Pre-Test

Question 1

Determine if the triangles are similar. If they are, identify the triangle similarity theorem(s) that prove(s) the similarity.

Accepted Answer

SSS ~ Theorem

Answer

AA ~ Theorem

Answer

SAS ~ Theorem

Answer

Not similar

Question 2

State if the triangles in each pair are similar. If so, state how you know they are similar.

Accepted Answer

Yes, AA Similarity

Answer

Yes, SSS Similarity

Answer

Yes, SAS Similarity

Answer

Not Similar

Question 3

Which side is corresponding to 7?

Accepted Answer

21

Answer

15

Answer

18

Answer

5

Question 4

Tell whether the triangles are similar or not.

Accepted Answer

a

Answer

b

Question 5

Are these two triangles similar? Which similarity criterion do you use to prove it?

Accepted Answer

Yes, SSS

Answer

Yes, AA

Answer

Yes, SAS

Answer

Not Similar

Question 6

Find the scale factor of the following triangles. (make sure to simplify)

Accepted Answer

3 to 1

Answer

18 to 5

Answer

15 to 6

Answer

5 to 7

Question 7

Tell whether the triangles are similar or not.

Accepted Answer

a

Answer

b

Question 8

Find the missing side using proportions.

Accepted Answer

b

Answer

a

Answer

c

Answer

d

Question 9

Is $$\Delta RPS\ \sim\Delta QPT$$ and by what theorem?

Accepted Answer

Yes: AA

Answer

No

Answer

Yes; SAS

Answer

Yes; SSS

Question 10

Which triangles are similar to triangle A?

Accepted Answer

B

Answer

C

Answer

Both

Answer

None

Question 11

Find the value of x.

Accepted Answer

25

Answer

20

Answer

36

Answer

144

Question 12

What ratio would I use for the side 5 and its corresponding side?

Accepted Answer

15/5 = 3

Answer

21/5

Answer

18/5

Answer

7/5

Question 13

Which triangles are similar to triangle A?

Accepted Answer

None

Answer

B

Answer

C

Answer

Both

Question 14

Which side is corresponding to 18?

Accepted Answer

6

Answer

5

Answer

7

Answer

15

Question 15

Find the scale factor of the dilation with center C. Then describe the kind of dilation

Accepted Answer

2/5; reduction

Answer

5/2; enlargement

Answer

2/3; reduction

Answer

3/2; enlargement

Question 16

Tell whether the triangles are similar or not.

Accepted Answer

a

Answer

b

Unit 6 - Similarity Pre-Test

20 questions

What is the length of BC?

Determine if the triangles are similar. If they are, identify the triangle similarity theorem(s) that prove(s) the similarity.

Find the value of x. (The distance from T to E) Round to the nearest tenth.

State if the triangles in each pair are similar. If so, state how you know they are similar.

Which side is corresponding to 7?

Tell whether the triangles are similar or not.

Are these two triangles similar? Which similarity criterion do you use to prove it?

Find the scale factor of the following triangles. (make sure to simplify)

Tell whether the triangles are similar or not.

Find the missing side using proportions.

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