Question

please answer meee it's urgent​

Answer 1

Step-by-step explanation:

given

BP and BC are the bisectors of the ABC and ACB

solution

In triangle abc

angle a + angle b + angle c = 180

1/2 a + 1/2 b+ 1/2 c= 90

1/2 b + 1/2 c= 90 +1/2 a

now In triangle BPC

1/2 b + 1/2 c+ bpc= 180

putting the value of(1/2 b +1/2 c ) from (1) in (2) we get

(1/2 b+½c) + bpc=180

90+½ of angle +bpc=180

angle bpc= 90 ½of angle bac