the slant height of a right circular cone is 10 m and its height is 8 m . find the area of its curved surface .
l = 10 m h = 8 m r = root ( i ^ 2 - h ^ 2 ) = root ( 10 ^ 2 - 8 ^ 2 ) = 6 m curved surface area = pi ri = 60 pi m ^ 2 answer c
multiply(10, sqrt(subtract(power(10, const_2), power(8, const_2))))