Question

area of circle is 394.24sqcm find diameter
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Answer 1

area of circle = 394.24cm²

2πr=394.24

2×22/7×r=394.24

44/7×r=39424/100

r=39424×7/100×44

r=62.72cm

diameter = 2× r

2×62.72

=125.44cm