Properties of Similar Triangles

Solve the proportion:

• 4

• 8

• 14

• 10

Are the triangles similar? If so, why?

• Similar.  SSS

• Similar.  SAS

• Similar.  AA

• Not Similar.

Given: PQ || BC.  Find the length of AB.

• 14

• 11

• 16

• 18

In the figure shown, BC || DE, AB = 2 yards, BC = 9 yards, AE = 36 yards and DE = 36 yards.  Find BD.

• 9 yd

• 8 yd

• 6 yd

• 27 yd

In the accompanying diagram of triangle ABC, DE || AB.  If CD = 4, CA = 10, CE = x + 2, and EB = 4x - 7, what is the length of CE?

• 10

• 8

• 6

• 4

• 50

• 40

• 30

• 20

How do these triangles appear to be similar?

• AA

• SAS

• SSS

• Not Similar

Give the reason for similarity.

• AA

• SAS

• SSS

• Not Similar

Are the triangles similar? If so, why?

• Similar.  SAS

• Similar.  AA

• Similar. SSS

• Not Similar

• 0
• 10
• 20
• 30