Triangle Similarity Theorem and Review

Find the height of the tree.

• 8 ft

• 12 ft

• 13 ft

• 15 ft

Find side length X.

• 16

• 18

• 2.4

• 15

State the postulate that proves these triangles are similar.

• SSS~

• SAS~

• AA~

• Not similar, b/c ratios are not equal

How do these triangles appear to be similar?
(Hint: Look for non-labeled parts!)

• AA

• SAS

• SSS

• Not Similar

How do these triangles appear to be similar?

• AA

• SAS

• SSS

• Not Similar

Find side length X.

• 22.5

• 10

• 9

• 7.5

How do these triangles appear to be similar?

• AA

• SAS

• SSS

• Not Similar

What similarity theorem would you use to prove these triangles are similar?

• SAS∼

• SSS∼

• AA∼

• Not Similar

Determine if the triangles are similar. If they are, identify the triangle similarity theorem(s) that prove(s) the similarity.

• AA ~ Theorem

• SAS ~ Theorem

• SSS ~ Theorem

• Not similar

Determine whether the triangles are similar.

• SSS~

• AA~

• SAS~

• Not similar