Finding angles June 23 , 2020

angle B = 46 degree

Step-by-step explanation:

since AB and BC are equal in length it means that the given triangle is an isosceles triangle as it's two sides are equal.

since base angle of an isosceles triangle are equal angle A = angle C

angle ACB + 113 = 180 degree

angle ACB = 180 - 113

angle ACB = 67 degree

since angle C is 67 degree angle A is also 67 degree

angle B + angle A = 113 degree (sum of two interior opposite angle is equal to the exterior angle formed)

angle B + 67 = 113

angle B = 113 - 67

angle B = 46 degree

i believe the correct answer is b.