Question

The areas of three circles are in the
ratio 4:9:25:. Find the ratio of their radii
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Answer 1

${a}^{2} isto \: {b}^{2} \: isto \: {c}^{2} = 4 \: isto \: 9 \: isto \: 25$

$a \: isto \: b \: isto \: c = 2 \: isto \: 3 \: isto \: 5$