Similar Triangles - Two-Column Proofs:
This set contains proofs with similar triangles. Students prove the triangles similar using AA, SAS, and SSS and also use CASTC (Corresponding Angles in Similar Triangles are Congruent).
- four sheets of practice proofs (two per page)
- one sheet of two challenging proofs with higher difficulty level
- one quiz (two pages containing four proofs)
- all answer keys
- a blank template (not computer editable) for writing your own proofs in the same structure and format or allowing students to develop their own proof problems.
See the preview for sample proofs and a list of prior knowledge needed as justifications for this set of proofs.
*** Note: This activity is also included in a larger DISCOUNTED bundle:
Try these other Math Giraffe resources as well:
Logic and Deductive Reasoning Activity Bundle
Lesson Pack: Slopes of Parallel and Perpendicular Lines