How do i find the surface area of a cylinder with a radius of 3.5 ft. and a height of 14 ft.

The formula for the surface area of a cylinder is:
2πrh + 2πr^2

If we substitute in the measurements that we know, you get:

2 (3.5) (14) + 2 (3.5)^2

If we simplify this expression, we get:

98 + 24.5

If you simplify once more, you get

122.5 or ≈ 384.85

Therefore, the surface area is 122.5 or about 384.85