Jan23-Geom4A-Similar Triangles Postulate

Which triangles are similar to triangle A?

• B
• C
• Both
• None

Tell whether the triangles are similar. Explain.

• Yes because it looks like it

• Yes because 81 + 48 + 51 = 180

• No because 81 + 48 + 51 =/= 180

• Def not

Are the triangles similar?

• Yes

• No

If two triangles are similar their angles are______.

• proportional

• congruent

• supplementary

• complementary

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

• SAS∼
• SSS∼
• AA∼
• Not similar

Choose the similarity statement for the triangles.

• ΔMNL ∼ ΔOPQ
• ΔNOM ∼ ΔPQL
• ΔLMN ∼ ΔPQO
• ΔMLN ∼ ΔPQO

How long is side x?

• 3
• 1.5
• 8
• 2/3

To measure the distance across a pond, a surveyor locates points A, B, C, D, and E as shown.  What is AB to the nearest meter?

• 10
• 12
• 15
• 18

Find the measure of the missing angle.

• 8^o
• 58^o
• 122^o
• 64^o

What similarity theorem would prove that these triangles are similar?

• SAS∼
• SSS∼
• AA∼
• Side Splitter