A rectangular prism-shaped container has a cross-sectional area of 42cm squared. If 1680cm cubed of water is poured into the container, what is the height of the water in it?
+9466 If we just look at the shape of the water, we see also a rectangular prism....
The cross sectional area of this prism is also 42 cm2 .
And...
volume of prism = (area of cross section) * (height)
Plug in the information from the problem.
1680 cm3 = (42 cm2) * (height)
Divide both sides by 42 cm2 .
40 cm = height
