Surface Area of a Cylinder 18 foot by 31 foot Calculator

The Surface Area of a Cylinder is equal to the sum of the areas of the bases each having an area of π ⋅ r² , plus the area of the side. The area of the side is equal to the area of a rectangle with length 2 π r (the circumference of the base) times the height. Surface Area of Cylinder Base Radius 18 foot by height 31 foot is5538.96 foot².

Steps:

Given that Base radius(r) = 18 ft and height(h) = 31 ft

The Surface Area of Cylinder = 2π .(Radius)² + 2π .(Radius) . (Height)

Substitute the values of the radius r = 18 ft and height h = 31 ft into the formula. Pi (π) is approximately equal to 3.14 .

2 . (π) . (18²) ft² + 2 .(π) . (18) ft . (31.0) ft

Raise 18.0 ft to the power of 2.

2 .(π) . (324.0) ft² + 2 . (π) . (18.0) ft . (31.0) ft

Multiply 324.0 ft² by 2

648.0 ft² . π + 2 .(π) . 18.0 ft . 31.0 ft

Multiply 18.0 ft and 31.0 ft

648.0 ft . π + 558.0 ft² . π . 2

Multiply 558.0 ft² and 2

648.0 ft² . π + 1116.0 ft² . π

Add 648.0 . π ft² and 1116.0 . π ft²

The result can be shown in multiple forms.

Exact Form

1764.0 . π ft²

∴ Surface Area of Cylinder 18.0 ft by 31.0 ft is 1764.0 . π ft²

Decimal Form

5538.96 ft²

∴ Surface Area of Cylinder 18.0 ft by 31.0 ft is 5538.96 ft²