Question

Michael is painting a cylindrical tank with a radius of 15 feet and a height of 60 feet. He must determine the surface area of the tank

so that he knows how much paint to purchase. What is the surface area of the tank, rounded to the nearest whole number?

Answer 1

7069.5 ft^2

I took the test and got a 100

Answer 2

7069.5 ft^2

Explanation:

Step one:

given data

dimension

radius of 15 feet

height of 60 feet

Required

The surface area of the tank

Step two:

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

substitute

`A= 2*3.142*15*60+2*3.142*15^2\\\\A=5655.6+1413.9\\\\A=7069.5`

A= 7069.5 ft^2