The bisector AP is drawn in an isosceles triangle ABC with base AC. Find the APB angle if the ACB angle is 74 degrees.
March 9, 2021 | education
| Since the triangle ABC is isosceles, the angle ABC = BCA = 74.
Then the angle ABC = (180 – 74 – 74) = 32.
AP is the bisector of angle A, then the angle VAR = 74/2 = 37.
In the ABP triangle, the ABP angle = (180 – 32 – 37) = 111.
Answer: The value of the angle ABP is 111.
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