Question

Just question 3. and I also need help to find answers in terms of pi

Answer 1

See below for answers and explanations

Explanation:

Recall

`\text{Volume of Cylinder}=\pi r^2 h` where
`r` is the radius and
`h` is the height.

Problem 3

`\text{Volume of Cylinder}=\pi r^2 h=\pi((8)/(2))^2(12)=\pi(16)(12)=192\pi\text{ in}^3`

Problem 4

`\text{Volume of Cylinder}=\pi r^2 h=\pi((10)/(2))^2(6)=\pi(25)(6)=150\pi\text{ ft}^3`