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**Proving Triangles Congruent: SSS and SAS**

GEOMETRY – SECTION 4.3

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**Side-Side-Side (SSS) Congruence Postulate**

If 3 sides of one triangle are congruent to 3 sides of another triangle, then the two triangles are congruent. If all 3 sides match, then .

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**Side-Angle-Side (SAS) Congruence Postulate**

If 2 sides of one triangle and the angle they form are congruent to 2 sides of another triangle and the angle they form, then the triangles are congruent.

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**Decide if the triangles are congruent**

Decide if the triangles are congruent. If so, state the congruence postulate that applies.

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**Decide if the triangles are congruent**

Decide if the triangles are congruent. If so, state the congruence postulate that applies.

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**Decide if the triangles are congruent**

Decide if the triangles are congruent. If so, state the congruence postulate that applies.

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Assignment p. 216: 2-17

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**CONGRUENT TRIANGLE PROOFS (SSS, SAS)**

Geometry – Section 4.3

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Write a proof. Given: Prove: STATEMENTS REASONS

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**Write a proof. Given: Prove: Given Given Linear pair Reflex. Prop.**

Def. of midpt. SAS Cong. Post.

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Assignment p : Write a two-column proof OR a flow proof (your choice).

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