Question

Isaiah tried to figure out how much wax to buy to make the cylindrical candle, but he

forgot the formula for the volume of a cylinder. Noah claims that to find the volume of a
rectangular prism, you need to know the number of unit cubes in one layer of the prism and
the prism's height. He thinks the same idea works for finding the volume of a cylinder.

Is Noah correct? Write an expression to find the
volume of a rectangular prism.

Answer 1

Noah is correct in his approach.

An expression to find the volume of a rectangular prism is V = πr²h.

Step-by-step explanation:

Yes, Noah is correct in suggesting that the same principle used to find the volume of a rectangular prism can be applied to find the volume of a cylinder.

For a rectangular prism, the volume is calculated by multiplying the area of the base (length × width) by the height of the prism.

This concept can indeed be extended to the volume of a cylinder which is found by multiplying the circular base area (πr²) by the height (h) of the cylinder.

Hence, the formula for the volume of a cylinder is V = πr²h, where V stands for volume, r represents the radius of the circular base, and h denotes the height of the cylinder.