# Triangle Congruence Proofs - SSS & SAS Postulates

## Free Geometry Worksheet - Triangle Congruence Proofs - SSS & SAS Postulates

**Lesson:**

To complete triangle congruence proofs using SAS and SSS

**Subject:**

Geometry

**Description:**

This worksheet contains problems and proofs that involve showing that two triangles are congruent using the SSS and SAS postulates. These proofs also require an understanding of previous properties, definitions, postulates, and theorems such as the segment addition postulate, angle addition postulate, the reflexive and substitutition properties of equality, and definitions of congruent segments, vertical angles, etc.

**# of Problems:** 10

**# of Pages:** 4

**Answer Key?:** Yes

### Sample Problems from Worksheet

(Worksheet pictures and diagrams not shown)

Tutor-USA.com Worksheet :

Geometry

Triangle Congruence Proofs – SSS, SAS

1-5) Complete two-column and paragraph proofs

6-7) Decide whether you can use SSS or SAS Postulate to prove that the triangles below are congruent. If so a) write the congruence statement and b) identify the postulate. If not, write not possible.

8) Supply the reasons for the proof below.

9-10) Write a two Column Proof.