How much fabric is required to cover x buttons in the shape of a circle whose radius is 5x?

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Answer 1 · 2017-10-19T21:01:13

Fabric required for covering x buttons # = 25pix^3#

Radius of the circular button = 5x
Area covered for one button # = pi.r^2 = pi.(5x)^2 = 25pi x^2#
Area covered for x button # = 25pix^2* x = 25pix^3#