Question
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2.
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Answer (Detailed Solution Below)
Option 2 : 1386 sq cm
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Detailed Solution
सही उत्तर 1386 sq cm है।
Key Points
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prepsnap.in • Part -AQuestion:
What is the area of a circle whose radius is 21 cm? (Take $\pi = \frac{22}{7}$.) / 21 सेमी त्रिज्या वाले वृत्त का क्षेत्रफल क्या होगा? ($\pi = \frac{22}{7}$ मानिए।)
1.
1372 sq cm
2.
1386 sq cm
3.
1380 sq cm
4.
1392 sq cm
Correct Answer: 1386 sq cm
Area $= \frac{22}{7} \times 21 \times 21 = 22 \times 63 = 1386$ sq cm. / क्षेत्रफल $= \frac{22}{7} \times 21 \times 21 = 22 \times 63 = 1386$ वर्ग सेमी।
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