alleryএকটি শঙ্কুময় ছায়ার ব্যাসার্ধ 7 cm এবং তির্যক উচ্চতা 15 cm; কাপড় এলাকা? π = 22/7।
A330 cm²
B484 cm²
C154 cm²
D660 cm²
Answer & Solution
Correct answer: A. 330 cm²
ছায়ার জন্য পার্শ্বীয় কাপড়ের এলাকা প্রয়োজন (22/7) × 7 × 15 = 330 সেমি ²।
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