Question

Can someone help me? I got some help from a friend but I still don’t get it

Answer 1

STEP - BY - STEP EXPLANATION

What to find?

• Surface area of the cylinder.

,

• Volume of the cylinder.

Given:

Radius = 3.5

Height =14

π is a constant = 3.14

The surface area can be determined using the formula below:

`Surface\text{ area}=2\pi rh+2\pi r^2`

Substitute the values into the formula and simplify.

`Surface\text{ area}=2(3.14)(3.5)(14)+2(3.14)(3.5)^2`
`=307.72+76.93`
`\approx384.7`

Hence, the surface area is 384.7 ft²

The volume of the cylinder can be obtained using the formula below:

`Volume=\pi r^2h`

Substitute the values into the formula and simplify.

`Volume=3.14*(3.5)^2*14`

Simplify the above.

`Volume\approx538.5ft^3`

ANSWER

• Surface area = 384.7 ft²

• Volume = 538.5 ft,³