Question

In triangle abc BC equal to a b and Angle B equal to 80 find angle A

Answer 1

Answer:

50

Step-by-step explanation:

AB = BC

equal sides have equal angles opposite to them

angle A = angle C

80+A+ C = 180 Angle sum property

C= A

80+2 × A = 180

2× A = 180-80

A = 100× 1\2

Q= 50°