This product contains 8 proofs for students to practice completing similar triangle proofs using AA Similarity, SSS Similarity, and SAS Similarity. The statements are given on the proofs; students must determine the correct reason that corresponds to each statement.
Reasons included: addition property of equality, subtraction property of equality, division property of equality, substitution property, simplify, definition of congruence, angle addition postulate, segment addition postulate, definition of an isosceles triangle, definition of an angle bisector, definition of a right angle, definition of midpoint, triangle sum theorem, cross product property, alternate interior angles, alternate exterior angles, vertical angles, corresponding angles, reflexive property, definition of supplementary angles, supplement (linear pair) theorem, congruent supplements theorem, consecutive interior angles converse, base angles of isosceles triangles are congruent, corresponding angles of similar triangles are congruent, corresponding sides of similar triangles are proportional. These proofs are challenging and connect many previously taught concepts!
Print the proofs on colored paper and the reasons on Avery 8167 white return labels. Students stick the reason labels on the proofs that correspond to the given statements.
No labels? No problem!
Use as a cut and paste activity, exit/entrance tickets, or place in sheet protectors for students to complete with dry erase markers.
Bonus: I also included a completely blank version of this activity if you’d like your students to do the proofs from start to finish on their own. This option would not use labels.
This resource is included in the following bundle(s):
Geometry Curriculum with Activities
Geometry Activities Bundle
License Terms:
This purchase includes a single non-transferable license, meaning it is for one teacher only for personal use in their classroom and can not be passed from one teacher to another. No part of this resource is to be shared with colleagues or used by an entire grade level, school, or district without purchasing the proper number of licenses. A transferable license is not available for this resource.
Copyright Terms:
No part of this resource may be uploaded to the internet in any form, including classroom/personal websites or network drives, unless the site is password protected and can only be accessed by students.
