alleryایک isosceles مثلث کا زاویہ 40° ہوتا ہے۔ ہر بنیادی زاویہ کیا ہے؟
A50°
B70°
C40°
D60°
Answer & Solution
Correct answer: B. 70°
بنیادی زاویہ 180 - 40 = 140 ڈگریوں کو مساوی طور پر بانٹتے ہیں، لہذا ہر ایک 70 ڈگری ہے۔
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