Which expression can be used to find the volume of the sphere? A sphere with diameter 10 inches. V = four-thirds pi r squared = Four-thirds (3.14) (5) squared V = four-thirds pi r cubed = Four-thirds (3.14) (5) cubed V = four-thirds pi r cubed = Four-thirds (3.14) (10) cubed V = four-thirds pi r squared = Four-thirds (3.14) (10) squared