In an isosceles ∆ABC,AB=BC if A=angle 52°.What is the measures of angl e 3 .
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Angle A=52°, Angle C=52° and Angle B= 180°-(52°+52°)=76°.
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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°
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