Geometry Lesson 11.2

Name the postulate or theorem that shows the triangles similar.

• SSS

• AA

• SAS

• not similar

Find the approximate value of y .

• 6.4

• 12.6

• 3.9

• 4.8

State whether the given lengths could be side lengths of similar triangles.

15, 24, 21 and 7, 5, 8

• yes

• no

Find the similarity ratio.

15, 24, 21 and 7, 5, 8

• 2

• 3

• 4

• 5

State whether the given lengths could be side lengths of similar triangles.

6, 16, 12 and 24, 9, 20

• yes

• no

State whether the given lengths could be side lengths of similar triangles.

4, 6, 8 and 12, 9, 6

• yes

• no

Find the similarity ratio.

4, 6, 8 and 12, 9, 6

• ¾

• ⅓

• ⅔

• ¼

Determine if the triangles can be proved similar. If so, name the postulate or theorem that justifies it.

• not similar

• SSS

• SAS

• AA

Write a similarity statement.

• ΔABC ∼ ΔHGF

• ΔABC ∼ ΔGHF

• ΔABC ∼ ΔHFG

• ΔABC ∼ ΔFGH

Determine if the triangles can be proved similar. If so, name the postulate or theorem that justifies it.

• AA

• SAS

• SSS

• not similar