Determine If Triangles Are Similar

Which triangles are similar to triangle A?

• B

• C

• Both

• None

Determine whether the triangles are similar by AA~, SSS~, SAS~, or not similar.

• AA

• SSS

• SAS

• not similar

Determine whether the triangles are similar by AA~, SSS~, SAS~, or not similar.

• AA

• SSS

• SAS

• not similar

Determine whether the triangles are similar by AA~, SSS~, SAS~, or not similar.

• AA

• SSS

• SAS

• not similar

Determine whether the triangles are similar by AA~, SSS~, SAS~, or not similar.

• AA

• SSS

• SAS

• not similar

Which is NOT true about similar triangles.

• The angles in the triangles are congruent to each other.

• The sides are proportional to each other.

• The triangles must have at least one side that is the same length.

• The angles in each triangle add up to 180^o.

What is the ratio of the side lengths?

• 2.5

• 1.5

• 2

• 1.25

How long is side x if the triangles are similar??

• 2 ft

• 3 ft

• 4 ft

• 6 ft

What is the length of XY?

• 15

• 25

• 30

• 40

State the postulate that proves these triangles are similar.

• SSS~

• SAS~

• AA~

• Not similar