अर्ध गोले का कुल पृष्ठ क्षेत्रफल बताओ यदि उसकी त्रिज्या 7 सेंटीमीटर हो
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154/7 is the corect answer make me brainlist
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Total surface area of hemisphere=3πr×r
which r=7cm
3×22/7×7×7
66/7×7×7
66/7×49
66×7
462 answer
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