Surface Area of a Cone 21 inches by 67 inches Calculator
If the cone Radius 21 inches by height 67 inches is 6014.6484384 inches2.
The surface area of a cone is equal to the area of the base plus the area of the cone. If the cone Radius 21 inches by height 67 inches is 6014.6484384 inches2.
Surface Area of a Cone 21 in by 67 in in other units
| Value | unit |
|---|---|
| 0.1527721 | km2 |
| 0.0949284 | mi2 |
| 152.7720703 | m2 |
| 501.2207032 | ft2 |
| 6014.6484384 | in2 |
| 167.0735677 | yd2 |
| 15277.2070335 | cm2 |
| 152772.0703354 | mm2 |
Steps:
Given that Base radius(r) = 21 in and height(h) = 67 in
Surface Area of a Cone = $(π⋅(Radius))$⋅($(Radius)$ + $\sqrt{(Radius)^2+(Height)^2}$)
Substitute the values of the radius r = 21 in and height h = 67 in into the formula. Pi (π) is approximately equal to 3.14 .
$(π⋅(21))$⋅ $(21$ + $\sqrt{(21)^2 + (67)^2})$
Move 21 to the left of π.
$(21π)$⋅$ (21$ + $\sqrt{(21)^2 + (67)^2}$
Simplify each term
Raise 21 in to the power of 2 and 67 to the power of 2
$(21π)$⋅$ (21$ + $\sqrt{(441.0) + (4489.0)}$ in
Add 441.0 in and 4489.0 in
$(21π)$ in⋅$ (21$ + $\sqrt{(4930.0)}$ in
Multipy 21π in and 21 in
441.0π in + (21π . $\sqrt4930.0$)in
Put the value of $\sqrt4930.0$ = 70.2139587 in formula
441.0π in + (21π . 70.2139587) in
Mulitply the 21π and 70.2139587
441.0π in + (1474.4931332π)
Add 441.0π in and 1474.4931332π in
The result can be shown in multiple forms
Exact Form
Area = 1915.4931332π in
∴ Surface Area of Cone 21 in by 67 in is 1915.4931332π in2
Decimal Form
6014.6484384 in2
∴ Surface Area of Cylinder 21 in by 67 in is 6014.6484384 in2