A cylinder has a surface area of 1850 square meters and a radius of 9 meters. Estimate the volume of the cylinder to the nearest whole number. How?

In order to find the volume you need the height.

Surface area = π r² + base x height or width x length

1850 = 3.14 * 9² + radius * 2 x π x height

1850 = 254.34 + 9 * 2 * 3.14 * height

1850 = 310.86 * height

To find the height you have to divide the surface area by the part I bolded

Height = 1850 : 310.56

Height ≈ 6

Volume of a cylinder = πr²*height

= 3.14 * 9 * 9 * 6

Volume = 1526.04

Nearest whole number would be 1526