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The adjoining figure shows the measures of a Joker’s dap. How much cloth is needed to make such a cap? |
Answer» Given: For the conical cap, radius (r) = 10 cm, slant height (l) = 21 cm To find: Cloth required to make the cap. Cloth required to make the cap = Curved surface area of the conical cap = πrl = 22/7 × 10 × 21 =22 × 10 × 3 = 660 cm2 ∴ 660 cm2 of cloth will be required to make the cap. |
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