the surface area of a sphere is same as the curved surface area of a right circular cylinder whose height and diameter are 16 cm each . the radius of the sphere is
"solution 4 î r 2 = 2 î 8 x 16 â ‡ ’ r 2 = ( 8 x 16 / 2 ) â ‡ ’ 64 â ‡ ’ r = 8 cm . answer d"
sqrt(divide(multiply(multiply(const_pi, multiply(16, divide(16, const_2))), const_2), multiply(const_pi, const_4)))