Question

In the figure AB=AC and Z ACD=115°. Find Z A.
plese tell fat and correct plese ​

Answer 1

Answer:

In triangle ABC, AB=AC

so,angle ABC=. angle ACB

here angle ACD=115°

so, angle ACB=(180-115)°=65°

so, angle ABC=65°

sum of the three angles of a triangle is 180°

angle ABC+angle ACB+angle BAC=180°

65°+65°+angle BAC=180°

angle BAC=(180-130) °=50°

so, angle A=50°