Similarity Review

The triangles are similar by...

• SAS
• AA
• ASA
• SSS

The triangles are similar by...

• SAS
• AA
• ASA
• SSS

Are these triangles similar?
Angles in Triangle 1:  40⁰,60⁰, and 80⁰
Angles in Triangle 2:  40⁰,50⁰, and 90⁰

• Yes
• No
• There is not enough information to decide.

Are these triangles similar?
Known angles in Triangle 1:  40⁰,60⁰
Known angles in Triangle 2:  60⁰,40⁰

• Yes
• No
• There is not enough information to decide.

Are these triangles similar?
Known angles in Triangle 1:  40⁰,60⁰
Known angles in Triangle 2:  80⁰,40⁰

• Yes
• No
• There is not enough information to decide.

Determine whether the triangles are similar or not. If so, state how they are similar.

• Yes, by AA Similarity
• Yes, by SAS Similarity
• Yes, by SSS Similarity
• No, not similar

Why are the triangles similar?

• AA
• SAS
• SSS
• AAS

If two figures are similar their angles are______.

• proportional
• congruent
• supplementary
• complementary

If two figures are similar, the corresponding sides are ______________.

• equal
• congruent
• proportional
• none of these

To find the height of a very tall pine tree, you place a mirror on the ground and stand where you can see the top of the pine tree.  How tall is the tree?

• 144 feet
• 72 feet
• 36 feet