फाइंड द एरिया ऑफ रेडियस 4.9 सैंटीमीटर एंड द पैरामीटर इज 49 सेंटीमीटर
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Explanation:
2πr=49
2×22/7×r=49
2×22×7=49×7
44r=343
r=7.79
area of circle=πr²
22/7 ×7.9×7.9
196.145cm²
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