Surface Area of a Cone 77 foot by 27 foot Calculator
If the cone Radius 77 foot by height 27 foot is 38345.4783453 foot2.
The surface area of a cone is equal to the area of the base plus the area of the cone. If the cone Radius 77 foot by height 27 foot is 38345.4783453 foot2.
Surface Area of a Cone 77 ft by 27 ft in other units
Value | unit |
---|---|
11.6877018 | km2 |
7.2624193 | mi2 |
11687.7017996 | m2 |
38345.4783453 | ft2 |
460145.7401436 | in2 |
12781.8261151 | yd2 |
1168770.1799647 | cm2 |
11687701.7996474 | mm2 |
Steps:
Given that Base radius(r) = 77 ft and height(h) = 27 ft
Surface Area of a Cone = $(π⋅(Radius))$⋅($(Radius)$ + $\sqrt{(Radius)^2+(Height)^2}$)
Substitute the values of the radius r = 77 ft and height h = 27 ft into the formula. Pi (π) is approximately equal to 3.14 .
$(π⋅(77))$⋅ $(77$ + $\sqrt{(77)^2 + (27)^2})$
Move 77 to the left of π.
$(77π)$⋅$ (77$ + $\sqrt{(77)^2 + (27)^2}$
Simplify each term
Raise 77 ft to the power of 2 and 27 to the power of 2
$(77π)$⋅$ (77$ + $\sqrt{(5929.0) + (729.0)}$ ft
Add 5929.0 ft and 729.0 ft
$(77π)$ ft⋅$ (77$ + $\sqrt{(6658.0)}$ ft
Multipy 77π ft and 77 ft
5929.0π ft + (77π . $\sqrt6658.0$)ft
Put the value of $\sqrt6658.0$ = 81.5965686 in formula
5929.0π ft + (77π . 81.5965686) ft
Mulitply the 77π and 81.5965686
5929.0π ft + (6282.9357788π)
Add 5929.0π ft and 6282.9357788π ft
The result can be shown in multiple forms
Exact Form
Area = 12211.9357788π ft
∴ Surface Area of Cone 77 ft by 27 ft is 12211.9357788π ft2
Decimal Form
38345.4783453 ft2
∴ Surface Area of Cylinder 77 ft by 27 ft is 38345.4783453 ft2