Geometry - Ch. 3: Proofs (6 of 17) Theorems Needed for Proofs

In this video I will define what is a theorem. A theorem is a statement that can be proven. Once proven, it can be used in other proofs: congruence of segments. Congruence of angles congruence of angles, congruence or right angles, congruence of right angles, congruence supplement, congruent supplements, congruent compliment, congruent of vertical angles.

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