Proving Triangle Similarity (SSS, SAS, AA)

• Not Similar
• Similar. ∆MNP~∆RQS
• Similar. ∆MNP~∆QRS
• Similar. ∆NPM~∆QRS

• 25
• 16
• 9
• 7

• Not Similar
• Similar. ∆GHI~∆JKL
• Similar. ∆GIH~∆JKL
• Similar. ∆GHI~∆JLK

• Not Similar
• Similar. ∆MNP~∆RQS
• Similar. ∆MNP~∆QRS
• Similar. ∆NPM~∆QRS

• Similar, 2 pairs of congruent angles.
  ∆JKL~∆LMN
• Similar. Side ratios proportional.
  ∆LMN~∆JKN
• Not Similar
• Similar. Perpendicular lines.
  ∆JKN~∆LMN

• Similar, 2 pairs of congruent angles.
  ∆QRP~∆TRS
• Similar, 2 pairs of congruent angles.
  ∆QRP~∆SRT
• Not Similar
• Similar, 2 pairs of congruent angles.
  ∆QRP~∆STR

• 25
• 16
• 9
• 7

• 25
• 4
• 9
• 7

The triangles are similar by...

• SAS
• AA
• ASA
• SSS

The triangles are similar by...

• SAS
• AA
• ASA
• SSS