find the curved surface area , if the radius of a cone is 35 m and slant height is 30 m ?
"cone curved surface area = ï € rl 22 / 7 ã — 35 ã — 30 = 110 ã — 30 = 3300 m ( power 2 ) answer is c ."
multiply(const_pi, multiply(35, 30))