Question 1

Polygons are similar if

Accepted Answer

all corresponding angles are congruent, and all corresponding sides are proportional

Answer

all sides and angles are proportional

Answer

all corresponding angles are congruent, and all corresponding sides are congruent

Question 2

True or false:  If two polygons have congruent angles and congruent sides, then the polygons are congruent.

Accepted Answer

true

Answer

false

Question 3

When polygons are similar, the scale factor can be found by

Accepted Answer

a ratio of the first polygon's side to the second polygon's corresponding side

Answer

subtracting one side of the first polygon by one side of the second polygon

Answer

dividing the angle measures

Answer

multiplying one side of the first polygon by one side of the second polygon

Question 4

If RST ~ XYZ, RS = 4, ST = 7, XY = 12, YZ = 21, determine the scale factor.

Accepted Answer

1:3

Answer

1:4

Answer

3:1

Answer

4:1

Question 5

If polygon WXYZ ~ polygon BCDA, which side is proportional to DA?

Accepted Answer

YZ

Answer

WX

Answer

XY

Answer

WZ

Question 6

Is MNO ~ to JKL?

Accepted Answer

Yes, the corresponding angles are congruent and the sides are proportional.

Answer

No, corresponding angles are not congruent and sides are not proportional.

Question 7

Given MNO ~ to JKL, what is the scale factor?

Accepted Answer

2:3

Answer

4:5

Answer

3:2

Answer

5:4

Question 8

Given MNO ~ JKL, if m∠M = 62 and m∠N = 78, find m∠L.

Accepted Answer

40

Answer

50

Answer

78

Answer

62

Question 9

△ABC ~ △DEF.  What is scale factor?

Accepted Answer

2

Question 10

△MNOP ~ △QRST.  What is scale factor?

Accepted Answer

0.5

Question 11

△ABC ~ △DEF.  What is the measure of CB?

Accepted Answer

15

Question 12

△ABC ~ △DEF.  What is the measure of DF?

Accepted Answer

7

Question 13

△GHI ~ △JKL.  Find x.  Round to the nearest hundredth.

Accepted Answer

x = 8.67

Answer

x = 6.75

Answer

x = 4.67

Answer

x = 5.75

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