In this worksheet of eight questions, students practice their knowledge of similarity proofs. In the first four questions, students determine which postulate or theorem works to prove triangle similarity - AA, SAS, or SSS. In the last four questions, students are asked to work through the proof of various problems. The answers are embedded in the page, and this is a helpful resource for students to work with similarity proofs.


  • Mathematics > General

Education Levels:

  • Grade 1
  • Grade 2
  • Grade 3
  • Grade 4
  • Grade 5
  • Grade 6
  • Grade 7
  • Grade 8
  • Grade 9
  • Grade 10
  • Grade 11
  • Grade 12


Informal Education,oai:nsdl.org:2200/20120614151517699T,NSDL,NSDL_SetSpec_ncs-NSDL-COLLECTION-000-003-112-016,High School,Mathematics



Access Privileges:

Public - Available to anyone

License Deed:

Creative Commons Attribution Non-Commercial Share Alike


Update Standards?

CCSS.Math.Content.HSG-SRT.A.2: Common Core State Standards for Mathematics

Given two figures, use the definition of similarity in terms of similarity transformations to decide if they are similar; explain using similarity transformations the meaning of similarity for triangles as the equality of all corresponding pairs of angles and the proportionality of all corresponding pairs of sides.

CCSS.Math.Content.HSG-SRT.A.3: Common Core State Standards for Mathematics

Use the properties of similarity transformations to establish the AA criterion for two triangles to be similar.
Curriki Rating
'NR' - This resource has not been rated
'NR' - This resource has not been rated

This resource has not yet been reviewed.

Not Rated Yet.

Non-profit Tax ID # 203478467