Question

What is the CSA of cone???

Answer 1

CSA of cone is,
$\pi\:rl$

Answer 2

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The surface area of a cone is equal to the curved surface area plus the area of the base: πr2+πLr, π r 2 + π L r , where r denotes the radius of the base of the cone, and L denotes the slant height of the cone. The curved surface area is also called the lateral area.