Question

I don’t understand this any help please answer and explain please

Answer 1

Angle ABC = 82°

Explanation:

Given triangle ABC is an isosceles triangle so we can write

angle BAC = angle BCA = 49°

Then,

angle BAC + angle BCA + angle ABC = 180° (Sum of all angles of a triangle is 180°)

or, 49° + 49° + angle ABC = 180°

or, angle ABC = 180° - 98°

or, angle ABC = 82°