Container A is a cylinder with a radius of 9 units and a height of 9 units. A right cone has been carved from its base and has a height of 9 units. Container B has the same radius as container A. Which statement derives the formula to find the volume of container B? Π(92)(9) − π(92)(9) 2[π(92)(9) − π(92)(9)] π(92)(9) − π(92)(9) 2[π(92)(9) − π(92)(9)]