Question

In a triangle ABC, P is a point on BC such that AB=PC. Angle ACB=20° and Angle ABC=80°. Find Angle APB.

Answer 1

Answer:

60°

Step-by-step explanation:

1. sum of all angles in a triangle = 180
2. now, 80+20=100
3. 180-100=80°
4. therefore. angle a is 80°
5. now the point on bc is p so when we will join it then it will be bisecting angle a
6. so angle a of triangle apb is 40°
7. now same method again sum of all angle in a triangle is 180
8. 80+40=120
9. 180-120=60
10. therefore angle apb is 60°