A cylindrical container has a diameter of 14cm and a height of 20cm and is full of water.A student pours the water into another cylinder of diameter of 20cm.How deep is the water in the second cylinder?

Answer 1

since the volumes are the same,
(20/2)^2 h = (14/2)^2 * 20
h = 49/5 = 9.8 cm