Quiz about Big Ideas Geometry Ch 8 Similarity

Question 1

Similar figures have the same ______ but different ______.

Accepted Answer

shape; sizes

Answer

measure; shapes

Answer

sizes; shapes

Answer

value; measures

Question 2

State the postulate that proves these triangles are similar.

Accepted Answer

AA

Answer

SSS

Answer

SAS

Answer

Not similar

Question 3

Find side length X.

Accepted Answer

15

Answer

16

Answer

18

Answer

2.4

Question 4

Find the missing length.

Accepted Answer

10

Answer

4

Answer

8

Answer

12

Question 5

Find the missing length.

Accepted Answer

35

Answer

28

Answer

42

Answer

13

Question 6

Find the missing length.

Accepted Answer

21

Answer

18

Answer

16

Answer

24

Question 7

If the scale factor is greater than one, the new figure will be

Accepted Answer

an enlargement

Answer

a reduction

Answer

a scale

Answer

not proportional

Question 8

A triangle has sizes measuring 11 cm, 16 cm, and 16 cm. A similar triangle has sides measuring x cm, 24 cm, and 24 cm. What is x?

Accepted Answer

x = 16.5 cm

Answer

x = 19 cm

Answer

x = 24 cm

Answer

x = 3 cm

Question 9

Solve for f.

Accepted Answer

4

Answer

6

Answer

3

Answer

8

Question 10

How do these triangles appear to be similar?

Accepted Answer

Not Similar

Answer

AA

Answer

SAS

Answer

SSS

Question 11

In similar Polygons, corresponding sides are ___ and corresponding angles are ___. (Fill in the blanks)

Accepted Answer

proportional, congruent

Answer

congruent, proportional

Answer

congruent, congruent

Answer

proportional, proportional

Question 12

Complete each proportion.
AB / BM = ? / CD

Accepted Answer

AC

Answer

BC

Answer

MD

Answer

MC

Question 13

A gymnasium is 96 feet long and 75 feet wide.  On a blueprint, the gymnasium is 5.5 inches long.  To the nearest tenth of an inch, what is the width of the gymnasium on the blueprint?

Accepted Answer

4.3

Answer

8.6

Answer

6.4

Question 14

Find the value of x.

Accepted Answer

18.67

Answer

6.92

Answer

2.625

Answer

13.71

Question 15

Solve for X

Accepted Answer

7.5

Answer

4.8

Answer

13.33

Answer

5

Question 16

Solve for x.

Accepted Answer

9

Answer

3

Answer

6

Answer

8

Question 17

Triangle SQR is similar to triangle SPT. Which segment corresponds to segment QR?

Accepted Answer

D) PT

Answer

A) SP

Answer

B) ST

Answer

C) PR

Question 18

Find the Geometric Mean between 2 and 50.

Accepted Answer

10

Answer

100

Answer

52

Answer

60

Question 19

The ratio of width to length of a rectangle is 3:4.  The perimeter is 98 units squared.  What are the width and length?

Accepted Answer

w = 21 l = 28

Answer

w = 3, l = 4

Answer

w = 42 l = 56

Answer

w = 30 l = 40

Question 20

Solve for the variable x.

Accepted Answer

x = 16.8

Answer

x = 26.25

Answer

x = 8.6

Answer

x = 2.4

Question 21

Find the Geometric Mean of 55 and 8.

Accepted Answer

20.98

Answer

440

Answer

29

Answer

52

Question 22

How are the triangles similar?

Accepted Answer

Angle Angle Similarity

Answer

Side angle side similarity

Answer

Side side side similarity

Answer

Not Similar

Question 23

Solve for the variable x.

Accepted Answer

x = 3.2

Answer

x = 80

Answer

x = 3

Answer

x = 6

Question 24

Simplify

Accepted Answer

B

Answer

A

Answer

C

Answer

D

Question 25

Simplify

Accepted Answer

C

Answer

A

Answer

B

Answer

D

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