Surface Area of a Cylinder 21 inches by 94 inches Calculator
Surface Area of Cylinder Base Radius 21 inches by height 94 inches is 15166.2 inches2
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 21 inches by height 94 inches is15166.2 inches2.
Surface Area of a Cylinder 21 in by 94 in in other units
Value | unit |
---|---|
0.3852215 | km2 |
0.2393661 | mi2 |
385.22148 | m2 |
1263.85 | ft2 |
15166.2 | in2 |
421.2833333 | yd2 |
38522.148 | cm2 |
385221.48 | mm2 |
Steps:
Given that Base radius(r) = 21 in and height(h) = 94 in
The Surface Area of Cylinder = 2π .(Radius)2 + 2π .(Radius) . (Height)
Substitute the values of the radius r = 21 in and height h = 94 in into the formula. Pi (π) is approximately equal to 3.14 .
2 . (π) . (212) in2 + 2 .(π) . (21) in . (94.0) in
Raise 21.0 in to the power of 2.
2 .(π) . (441.0) in2 + 2 . (π) . (21.0) in . (94.0) in
Multiply 441.0 in2 by 2
882.0 in2 . π + 2 .(π) . 21.0 in . 94.0 in
Multiply 21.0 in and 94.0 in
882.0 in . π + 1974.0 in2 . π . 2
Multiply 1974.0 in2 and 2
882.0 in2 . π + 3948.0 in2 . π
Add 882.0 . π in2 and 3948.0 . π in2
The result can be shown in multiple forms.
Exact Form
4830.0 . π in2
∴ Surface Area of Cylinder 21.0 in by 94.0 in is 4830.0 . π in2
Decimal Form
15166.2 in2
∴ Surface Area of Cylinder 21.0 in by 94.0 in is 15166.2 in2