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Worksheets

Similar Triangles

Total questions: 12

Worksheet time: 2hrs 40mins

Name
Class
Date
1.

If two triangles are similar their angles are______.

a)

proportional

b)

congruent

c)

supplementary

d)

complementary

2.

If two triangles are similar, the corresponding sides are ______________.

a)

equal

b)

congruent

c)

proportional

d)

none of these

3.
Complete each proportion.
CB / DM  =  AC / ?
a)
BM
b)
MA
c)
BC
d)
AD
4.

Complete each proportion.

AB / AM = ? / AD

a)

BC

b)

AC

c)

MD

d)

MC

5.

What is the scale factor from ΔABC to ΔDEF?

a)

1/2

b)

7/3

c)

2

d)

10/3

6.

What is the scale factor from ΔABC to ΔXYZ?

a)

1.25

b)

1.5

c)

2

d)

2.5

7.

What is the scale factor from ΔABC to ΔHGF?

a)

1/9=.111

b)

1/6=.167

c)

1/4=.25

d)

6

8.

If the two triangles are similar, what is the measurement of x?

a)

2 ft

b)

3 ft

c)

4 ft

d)

6 ft

9.

If the two triangles are similar, what is the measurement of x?

a)

3

b)

1.5

c)

8

d)

2/3=0.667

10.

The two given triangles are similar, what is the value of the missing side?

a)

5

b)

7

c)

9

d)

11

11.

If the two triangles are similar, what is the measurement of x?

a)

16

b)

18

c)

2.4

d)

15

12.
The triangles are similar, solve for the question mark.
a)
8
b)
12.5
c)
18
d)
24