Proof: Angle Bisector Theorem

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Sunny Sensei

Sunny Sensei

7 ай бұрын

The bisector of any angle in a triangle will divide the opposite side in the ratio of the sides containing the angle. This is proved by using the following fundamentals:
- Alternate Interior Angles are equal.
- AA criterion of similarity
- Sides opposite to equal angles in a triangle are equal.
- An angle bisector divides an angle equally into two.
#geometry #anglebisectortheorem

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