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0 votes
6.0k views
in Mathematics by (53.9k points)

The slant height of a frustum of a cone is 4 cm and the perimeters of its circular ends are 18 cm and 6 cm. Find the curved surface area of the frustum.

1 Answer

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by (65.2k points)
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Best answer

Let the radii of frustum be rand r2

Hence, curved surface area = 48 cm2

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