The slant height of the frustum of a cone is 5cm. If the difference between the radii of its two circular ends is 4cm, find the height of the frustum.

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asked Feb 8, 2018 in Mathematics by Kundan kumar (49,132 points) 34 379 1010
The slant height of the frustum of a cone is 5cm. If the difference between the radii of its two circular ends is 4cm, find the height of the frustum.

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answered Feb 8, 2018 by Vikash Kumar (144,729 points) 8 11 21
 
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Let r and R be radii of the circular ends of the frustum of the cone.

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