csa of cone csa of conr
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Help improve it. 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. The curved surface area is also called the lateral area.
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Answer:
πrl
Step-by-step explanation:
πrl
r=radius of the open part of cone
l is the slant height of cone
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