Solution - Frustum of a Cone



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fez, the cap used by the Turks, is shaped like the frustum of a cone (see the figure given below). If its radius on the open side is 10 cm, radius at the upper base is 4 cm and its slant height is 15 cm, find the area of material use for making it.  [use π=22/7]


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Reference Material

Solution for concept: Frustum of a Cone. For the course 8th-10th CBSE