Cups A and B are cone shaped and have heights of 25 cm25cm and 27 cm27cm and openings with radii of 12 cm12cm and 6 cm6cm, 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
Cup A will be filled to a height of 16.2 cm.
Explanation:
The volume of a cone can be found using the formula;
Here,
It seems that the volume of cup A is larger than the volume for cup B, so cup A will not overflow. Instead, the water will settle into a cone of water with some height,
We do not yet know the values of
Now we can solve for
Going back to our volume expression above, we can plug in this
The volume formula constants will cancel out, and the
The rest is algebra.