alleryرداس کا ایک سرکلر سیکٹر 21 cm کا دائرہ 86 cm ہے۔ اس کا علاقہ تلاش کریں؛ استعمال کریں π = 22/7۔
A462 cm²
B231 cm²
C693 cm²
D924 cm²
Answer & Solution
Correct answer: A. 462 cm²
قوس 86−2×21 = 44 سینٹی میٹر ہے، زاویہ 44/132×360° =120° دیتا ہے۔
رقبہ 120/360×(22/7)×21² = 462 cm² ہے۔
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