Question

surface area of a sphere 13.86 CM² find the volume and radius

Answer 1

Surface area of sphere = 4πr^2

=> 13.86 = 4πr^2

=> r^2 = 13.86/4π

=> r^2 = 1.102

=> r = 1.049 cm

Volume of sphere = 4/3πr^3

= 4/3 π × 1.154

= 4.83 cm^3