Similar Triangles Proportionality Theorems

Find the length of the missing side.

• 4

• 6

• 5

• 7

Find the length of the unknown segment.

• 6

• 3

• 7

• 1

Find the missing length.

• 5

• 9

• 7

• 8

Find the missing length.

• 14

• 20

• 16

• 10

Which of the following is NOT true about similar figures?

• Similar figures always have the same shape.

• Similar figures always have the same size.

• Similar figures always have corresponding angles that are equal.

• Similar figures always have corresponding sides that are proportional.

ΔSQR∼ΔSPT. Which choice below lists two corresponding sides?

• SP and SR

• QS and PT

• PS and RS

• TP and RQ

Why are the triangles similar?

• AA~

• SAS~

• SSS~

• AAS~

Solve for x.

• x = 5

• x = 3

• x = 14

• x = 1

Are the triangles similar?

• No, they are not similar.

• Yes, by AA~.

• Yes, by SAS~.

• Yes, by SSS~.

Are triangle ABC and ADE similar?

• No, they are not similar.

• Yes, by AA~.

• Yes, by SAS~.

• Yes, by SSS~.