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1o. Find the curved surface area of the right circular cone whose radius is 3em and the height is4em. (Take 3.14)

Answer»

Curved surface area of cone = 3.14xrxlWhere r = radius of basel = Slant height of coneTo find slant height use pythagoras theoramlxl = rxr + hxhlxl = 9 + 16lxl = 25l = 5 cm

CSA of cone = 3.14x3x5= 47.1 cm^2



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