Math, asked by patelnitishkumar58, 11 months ago

the area of two circle are in ratio 4:9.find the radio of their circumference

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Answered by Anonymous

0

Area = πr²

hence rato of area = r²/r'² = 4/9

hence r/r' = 2/3

now cricumference = 2πrand ratio of cricumference = r/r' = 2/3

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