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6. A tent is made in the form of a frustum of a cone surmounted byanother cone. The diameters of the base and the top of the frustum are20 m and 6 m respectively, and the height is d m. If the height of thetent is 28 m and the radius of the conical part is equal to the radius of theton of the frustuin, find the quantity of canvas required. Take π-22 |
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