the surface area of a sphere is same as the curved surface area of a right circular cylinder whose height and diameter are 10 cm each . the radius of the sphere is
"solution 4 î r 2 = 2 î 5 x 10 â ‡ ’ r 2 = ( 5 x 10 / 2 ) â ‡ ’ 25 â ‡ ’ r = 5 cm . answer b"
sqrt(divide(multiply(multiply(const_pi, multiply(10, divide(10, const_2))), const_2), multiply(const_pi, const_4)))