Djuzepe wants to know how much rain will fall. He places his round bucket on the flat surface.
Interior measures of a bucket are: bottom diameter 30cm, top diameter 40cm, and the slant height 50cm.
After the rain, Djuzepe measures the depth of the water, and it's 6 cm. How much water did actually fall per cm2?
(The answer should be in cubic centimeters)