Question

Cylinder a r=4 h = 7 7 b. h= 14.3, r = 8.5

Answer 1

To calculate the volume of a cylinder you have to multiply the area of the circle by the height of the cylinder.

`\begin{gathered} V=A\cdot h \\ V=\pi r^2\cdot h \end{gathered}`

We know that the radius of the circle is r=4 and the height of the cylinder is h=7, replace both values on the formula to determine the volume:

`\begin{gathered} V=\pi(4^2)\cdot7 \\ V=\pi\cdot16\cdot7 \\ V=112\pi \\ V\approx351.86 \end{gathered}`

The volume of the cylinder is approximately 351.86 cubic units.