Identifying Similar Figures Using Rules

The triangles are similar, solve for the question mark.

• 8

• 12.5

• 18

• 24

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

• x = 20

• x = 12

• x = 5

• x = 4

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 = 1

• x = 3

• x = 9

• x = 5

Which best describes the pair of figures?

• similar

• not similar

• congruent

• Proportional

4m

5m

3m

4.5m

• 4m

• 5m

• 3m

• 4.5m

Which best describes the pair of figures?

(a)  

• similar

• not similar

• congruent

• Proportional

4m 5m 3m 4.5m

• 4m

• 5m

• 3m

• 4.5m

Solve for x. The two figures are similar.

• x = 6

• x = 9

• x = 7

• x = 0

Solve for x.

• 19.8 units

• 12 units

• 20.8 units

• 10 units