allerypi کو 22/7 کے طور پر لیتے ہوئے، 7 cm رداس کے دائرے کا رقبہ کیا ہے؟
A154 cm²
B49 cm²
C44 cm²
D308 cm²
Answer & Solution
Correct answer: A. 154 cm²
دائرے کا رقبہ pi r مربع ہے، لہذا (22/7) x 49 = 154 مربع سینٹی میٹر۔
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