Similarity in Geometry

Which of the following is not a similarity postulate or theorem?

• AA
• SAS
• ASA
• SSS

The triangles are similar by...

• SAS
• AA
• ASA
• SSS

The triangles are similar by...

• SAS
• AA
• ASA
• SSS

The triangles are similar by...

• SAS
• AAS
• 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.

If the triangles are similar, state how.

• SSS
• SAS
• AA
• Not similar

If the triangles are similar, state how.

• SSS
• SAS
• AA
• Not similar.

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