O is the center of the circle and AP is the tangent to the circle at point A. Ray AF is the bisector of angle BAC. Prove : seg AP congruent seg PE
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To prove that segment AP is congruent to segment PE
- By the theorem the angles in the alternate segments are equal
angle PAC= angle ABC = y
- AE bisects angle BAC
angle CAE = angle EAB = x
- we know that exterior angle is equal to sum of the two interior angle
angle PAE = x+y
angle PEA = x+y
- In triangle APE
angle PAE = angle PEA
AP =PE
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