Question

In an isosceles ∆ABC,AB=BC if A=angle 52°.What is the measures of angl e 3 .

Answer 1

Angle A=52°, Angle C=52° and Angle B= 180°-(52°+52°)=76°.

Answer 2

In Δ ABC

BC=AC

∴∠A=∠C ( Angles opposite to the equal sides are equal)

⇒∠A =∠C = 52°

∴ ∠B = 180 - (∠A + ∠C)

⇒∠B = 180 - (52 + 52)

⇒∠B = 76°