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The radii of circular bases of a frustum of a right circular cone are 12cm and 3cm and height is 12cm.

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The radii of circular bases of a frustum of a right circular cone are 12cm and 3cm and height is 12cm. find the total surface area volume of frustum?

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Let slant height of frustum cone be ‘l’

Given height of frustum cone 12cm

Radii of a frustum cone are 12cm and 23cm

Total surface area of cone 

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