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Triangle Sum Conjecture

Sum of measures of angles in every triangle is 180

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Isosceles Triangle Conjecture

If triangle is isosceles, then base angles are congruent.

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Triangle Inequality Conjecture

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

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Side Inequality Conjecture

The longer line is opposite the larger angle.

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Triangle Exterior Angle Conjecture

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

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SSS SAS ASA AAS

Triangle Congruence Shortcuts

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CPCTC

Corresponding Parts of Congruent Triangles are Congruent

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