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The radius of a cone is 5 cm and vertical height is 12 cm. Find the area of the curved surface. |
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Answer» Radius of cone (r) = 5 cm Vertical height (h) = 12 cm Slant height of cone (l) = √(r2+h2) = √(52+122) = √25 + 144 = √169 = 13 cm Curved surface area of cone = πrl = 22/7×5×13 = 204.28 cm2 |
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