4.2 Triangle Congruence by SSS and SAS

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Find the Distance and Midpoint between the two points (-12, 6) and (-4, -3)

4.2 Triangle Congruence by SSS and SAS

Learning Target I can prove two triangles congruent using the SAS and SSS postulates

Side-Side-Side (SSS) Postulate : If three sides of one triangle are congruent to the three sides of another triangle, then the two triangles are congruent.

Side-Angle-Side (SAS) Postulate: If two sides and the included angle of one triangle are congruent to two sides and the included angle of another triangle, then the two triangles are congruent

Examples of Both

From your 4-2 worksheet

Lets do 1-9 on the 4-2 worksheet

Proving #14 and #15 together

RECAP: Do you know what SSS and SAS means? Can you identify two triangles congruent with the SSS and SAS Postulates? Can you provide Reasoning in a Proof?

Homework: P. 189-190 #1-21 all , skip 7 Due Monday