Question

In triangle ABC, if AB=BC and ∠B = 70°, ∠A will be:​

Answer 1

Answer:

since, AB-BC

angle A = angle C

let angle A = x

so, angle C is also equal to x 2x + 70 = 180 degree

angle A + angle B+ angle C = 180 degree

x = (180-70)/2

x = 55 degree