Triangle Similarity

8.2 and 8.3 Triangle Similarity Theorems

By Mary Lett

​Objective and Standards

• Students will be able to prove triangles are similar using similarity criteria.

• HSG-SRT.A.2, HSG-MG.A.3, HSG-SRT.A.3, HSG-SRT.B.4, HSG-SRT.B.5, HSG-SRT.B.6, SG-MG.A.1

Multiple Select

Determine if the triangles are similar. If they are, identify the triangle similarity theorem(s) that prove(s) the similarity.

• AA ~ Theorem

• SAS ~ Theorem

• SSS ~ Theorem

• Not similar

Multiple Select

Determine if the triangles are similar. If they are, identify the triangle similarity theorem(s) that prove(s) the similarity.

• AA ~ Theorem

• SAS ~ Theorem

• SSS ~ Theorem

• Not similar

Multiple Select

Determine if the triangles are similar. If they are, identify the triangle similarity theorem(s) that prove(s) the similarity.

• AA ~ Theorem

• SAS ~ Theorem

• SSS ~ Theorem

• Not similar

Multiple Select

Determine if the triangles are similar. If they are, identify the triangle similarity theorem(s) that prove(s) the similarity.

• AA ~ Theorem

• SAS ~ Theorem

• SSS ~ Theorem

• Not similar

Multiple Choice

Complete the similarity statement: △CED ~ _______

• △TUV
  

• △VTU

• △TVU
  

• △UTV

Multiple Select

Determine if the triangles are similar. If they are, identify the triangle similarity theorem(s) that prove(s) the similarity.

• AA ~ Theorem

• SAS ~ Theorem

• SSS ~ Theorem

• Not similar

Multiple Select

Determine if the triangles are similar. If they are, identify the triangle similarity theorem(s) that prove(s) the similarity.

• AA ~ Theorem

• SAS ~ Theorem

• SSS ~ Theorem

• Not similar

Multiple Select

Determine if the triangles are similar. If they are, identify the triangle similarity theorem(s) that prove(s) the similarity.

• AA ~ Theorem

• SAS ~ Theorem

• SSS ~ Theorem

• Not similar

Multiple Select

Determine if the triangles are similar. If they are, identify the triangle similarity theorem(s) that prove(s) the similarity.

• AA ~ Theorem

• SAS ~ Theorem

• SSS ~ Theorem

• Not similar

Multiple Choice

Complete the similarity statement: △WYX ~ _______

• △WYZ
  

• △WZY

• △YZW
  

• △YWZ

Multiple Choice

Complete the similarity statement: △ADB ~ _______

• △ACE
  

• △AEC

• △EAC
  

• △ECA

Multiple Choice

Complete the similarity statement: △ACB ~ _______ ~ _______

• △ACD, △ABD
  

• △DCA, △BDA

• △ACD, △BDA
  

• △DCA, △DAB