if a solid sphere of radius 10 cms is moulded into 8 spherical solid balls of equal radius , then surface area of each ball ( in cm 2 ) is ?
4 / 3 π * 10 * 10 * 10 = 8 * 4 / 3 π r 3 r = 5 4 π * 5 * 5 = 100 π answer : a
multiply(const_4, power(power(divide(multiply(multiply(10, 10), 10), 8), const_0_33), const_2))