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The circumference of two circles are on the ratio 5 : 6. Find the ratio of their areas.

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The circumference of two circles are on the ratio 5 : 6. Find the ratio of their areas.

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Let the radii of the given circles be r1 and r2

Let their circumference be C1 and C2 respectively

C1 = 2πr1 and C2 = 2πr2

Now let the area of the given circles the A1 and A2

∴ The areas of two circles are in the ratio 25 : 36.

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