Cups A and B are cone shaped and have heights of 32cm and 12cm and openings with radii of 15cm and 12cm, respectively. If cup B is full and its contents are poured into cup A, will cup A overflow? If not how high will cup A be filled?

1 Answer
Jul 31, 2018

Cup A will be filled to a height of 7.68cm

Explanation:

Volume of Cup A
V=13πr2h
V=13π(15)2(32)
V=2400π

Volume of Cup B
V=13πr2h
V=13π(12)2(12)
V=576π

Therefore, when Cup B is poured into Cup A, Cup A will not overflow

To find the height, we let V=576π and using r=15

V=576π
13πr2h=576π
13π(15)2h=576π
2253h=576
h=7.68