Question

A covered water tank is in the shape of a cylinder. The tank has a 28-inch diameter and a height of 66 inches. To the nearest square inch, what is the surface area of the water tank?

Answer 1

`A = 2 \pi rh + 2 \pi r ^(2)`

`r = (1)/(2) (28) = 14`

`A = 7037.17`

Answer 2

7038 square inches

Step-by-step explanation:

Formula for Surface area is given by =
`2\pi r h + 2\pi r^2`

here radius (r) = 14 inches

height (h) = 66 inches

Surface area =
`2\pi (14) (66) + 2\pi (14)^2`

= 5806+2(616)

= 5806+1232

= 7038 square inches