This product contains 8 proofs for students to practice completing parallelogram proofs using their knowledge of the properties of parallelograms. The statements are given on the proofs; students must determine the correct reason that corresponds to each statement.

**Reasons included: **subtraction property of equality, substitution property of equality, transitive property of congruence, reflexive property of congruence, definition of congruence, definition of midpoint, segment addition postulate, definition of an isosceles, triangles, definition of a parallelogram, alternate interior angles, vertical angles, corresponding angles, alternate interior angles converse, corresponding angles converse, base angles of an isosceles triangle are congruent, opposite angles of a parallelogram are congruent, opposite sides of a parallelogram are congruent, corresponding angles of similar triangles are congruence, diagonals of a parallelogram bisect each other, one pair of opposite sides of a parallelogram are congruence and parallel, SSS triangle congruence, SAS triangle triangle congruence, ASA triangle congruence, AAS triangle congruence, and CPCTC. **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 t****ransferable license is not available for this resource.
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###### 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.