alleryএটা বৃত্তকলাৰ কোণ 90° আৰু ব্যাসাৰ্ধ 14 cm। pi = 22/7 ব্যৱহাৰ কৰি, ইয়াৰ কালি কিমান?
A124 sq cm
B154 sq cm
C77 sq cm
D308 sq cm
Answer & Solution
Correct answer: B. 154 sq cm
সম্পূৰ্ণ বৃত্তৰ কালি 616 ৰ এক-চতুৰ্থাংশই 154 বৰ্গ ছেন্টিমিটাৰ দিয়ে।
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