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Deepak Bora
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A circus tent is cylindrical to a height of 3 m and conical above it. If its base radius is 52.5 m and the slant height of the conical portion is 53 m, find the area of canvas needed to make the tent.

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This question based cone and cylinder surface area. To find answer we need cone and cylinder surface area formulas. This question number 11 rom RS Aggarwal book, exercise number 17A.

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1 Answer

  1. Radius of the cylinder = 52.5 m

    Radius of the base of the cone = 52.5 m

    Slant height (l) of the cone = 53 m

    Height of the cylinder (h) = 3 m

    Curved surface area of the cylindrical portion = 2πrh

    = 2 * 22/7 * 52.5 * 3

    = 990 m²

    Curved surface area of the conical portion = πrl

    = 22/77 * 52. 5 * 53

    = 8745 m²

    Thus,

    The total area of canvas required for making the tent = (8745 +990) m²

    The total area of canvas required for making the tent = 9735 m²

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