Question

Mary wants to fill in a cylinder vase. At the flower store they told her that the vase should be filled 2/3 for the flowers to last the longest. Her cylinder vase has a radius of 3in and a height of 8in. How much water should Mary pour into the vase? 30 POINTS!

Answer 1

Volume of water to be filled =
(Pi*R^2*h-Pi*r^2*h)
=Pi*h(R^2-r^2)
=pi*8(3^2-(3*2/3)^2)
=pi*8(9-4)
=pi*8*5
=40pi
=125.66