Similar Figures & Scale Factor

Are the following similar? Why or why not?

• Yes

• No, the corresponding angles are not equal.

• No, the ratios of the corresponding sides are not equal.

Triangle ABC is similar to triangle XYZ.  What is the length of line segment BC?

• 5 cm

• 7.5 cm

• 8 cm

• 9 cm

Find side length X.

• 30

• 25

• 15

• 40

Solve for x.

• 3

• 5

• 6

• 9

Solve for x.

• 2

• 4.5

• 7

• 4

Find the missing measure. 

• 12

• 14

• 196

• 168

The two right triangles below are similar. What is x, the missing side length in triangle DEF? 

• 3.75

• 9.75

• 10

• 12

The pair of figures is similar. Find the missing side.

• x = 9

• x = 28

• x = 7

• x = 63

The pair of figures is similar. Find the missing side.

• x = 20

• x = 12

• x = 5

• x = 4

The scale drawing car length is 3 cm. If the scale is 1 cm:4 ft, what is the actual car length?

• 12 feet

• 16 feet 

• 10 feet

• 4 feet