Proof: Angle Bisector Theorem #triangles

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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
  1. Sunny Sensei
  2. geometry
  3. proof
  4. triangle theorems
  5. triangle
  6. sunny sensei
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