# Proving Triangles Congruent - PowerPoint PPT Presentation

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Proving Triangles Congruent. Sections 4-4 and 4-5. SSS Postulate. If the sides of one triangle are congruent to the sides of a 2 nd triangle, then the triangles are congruent. SAS Postulate.

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Proving Triangles Congruent

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## Proving Triangles Congruent

Sections 4-4 and 4-5

### SSS Postulate

If the sides of one triangle are congruent to the sides of a 2nd triangle, then the triangles are congruent

### SAS Postulate

If 2 sides & the included angle of one triangle are congruent to 2 sides & the included angle of another triangle, then the triangles are congruent.

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30

### ASA Postulate

If 2 angles & the included side of one triangle are congruent to 2 angles & the included side of another triangle, the triangles are congruent.

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95

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30

### AAS Theorem

If 2 angles & a nonincluded side of one triangle are congruent to the corresponding 2 angles & side of a 2nd triangle, the 2 triangles are congruent.

95

95

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30

### Joke Time

Why did the man sleep with a ruler?

to see how long he could sleep

What kind of undergarment does the Little Mermaid wear?

an alge-bra