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A jokers cap in the form of a right circular cone of base radius 7cm and height 27cm find the area of the sheet required to make 10 such cones |
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Answer» align="absmiddle" alt="\underline{\underline{\green{\textbf{Step - By - Step - Explanation : -}}}}" class="latex-formula" ID="TexFormula1" src="https://tex.z-dn.net/?f=%5Cunderline%7B%5Cunderline%7B%5Cgreen%7B%5Ctextbf%7BStep%20-%20By%20-%20Step%20-%20Explanation%20%3A%20-%7D%7D%7D%7D" title="\underline{\underline{\green{\textbf{Step - By - Step - Explanation : -}}}}"> To Find : we need to find the area of sheet required to make 10 cones Solution :Radius of BASE = 7cm Height = 27cm Slant height = √7² + 27² l = √49 + 729 l = √778 l = 27 CSA Of 1 cone :⠀⠀⠀⠀⠀⇛CSA = π × 7 × 27 ⠀⠀⠀⠀⠀⇛CSA = 22/7 × 7 × 27 ⠀⠀⠀⠀⠀⇛CSA = 594 cm² Curved surface area of ONE cone is 594cm² Curved surface area of 10 cones ⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀ ⠀ = 10 × 594 ⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀= 5940 cm² ━━━━━━━━━━━━━━━━━━━━━━━━━ |
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