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Information about 4-2 Some Ways To Prove Triangles Congruent Filled Out

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Think (Don’t write yet) If all three angles and all three sides of two triangles are congruent then we can conclude that the triangles are congruent. Is there a shortcut we can take????

If all three angles and all three sides of two triangles are congruent then we can conclude that the triangles are congruent.

Is there a shortcut we can take????

SSS SSS Postulate If 3 sides of one ∆ are congruent to 3 sides of another ∆ then the ∆’s are congruent (Volunteer needed for demonstration)

SSS Postulate

If 3 sides of one ∆ are congruent to 3 sides of another ∆ then the ∆’s are congruent

(Volunteer needed for demonstration)

SAS SAS postulate If 2 sides and the included angle of one ∆ are congruent to two sides and the included angle of another ∆ then the triangles are congruent.

SAS postulate

If 2 sides and the included angle of one ∆ are congruent to two sides and the included angle of another ∆ then the triangles are congruent.

ASA Postulate If 2 angles and the included side of one ∆ are congruent to two angles and the included side of another ∆ then the triangles are congruent.

If 2 angles and the included side of one ∆ are congruent to two angles and the included side of another ∆ then the triangles are congruent.

Tricks to remember

STATEMENT REASON

Homework Page 124 #2-18 even

Page 124 #2-18 even

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