Prove of csa formula of cone
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Step-by-step explanation:
The surface area of a cone is equal to the curved surface area plus the area of the base: π r 2 + π L r , \pi r^2 + \pi L r, πr2+πLr, where r denotes the radius of the base of the cone, and L denotes the slant height of the cone.
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pie r l is the formula os csa
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