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The diagonals of two squares are in the ratio of 2:5. Find the ratio of their areas.

2:25
3:25
4:25
6:25

Correct Answer: 4:25

Explanation:

let the diagonals of the squares be 2x and 5x respectively

ratio of their areas = $\frac{1}{2} * 2 x 2 : \frac{1}{2} * 5 x 2$ = 4:25

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