Question

In the given triangle ABC, find the value of x.
(A) 55°
(B) 110°
(C) 70°
(D) 27.5°

Answer 1

If AD=BD then angle Dab will be equal to angle d b a show angle dab will be 35 degree similarly DC equal to BD then angle DCB equals to angle DBC that is 2x.

2x+2x+35+35=180

4x=110

X=27.5°