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By: Richy Lee

Triangle Sum Conjecture

Sum of measures of angles in every triangle is 180

Isosceles Triangle Conjecture

If triangle is isosceles, then base angles are congruent.

Triangle Inequality Conjecture

Sum of the lengths of any two sides of a triangle is greater than the length of the third side.

Side Inequality Conjecture

The longer line is opposite the larger angle.

Triangle Exterior Angle Conjecture

Measure of exterior angle is equal to the sum of the remote angles.


Triangle Congruence Shortcuts


Corresponding Parts of Congruent Triangles are Congruent

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