Surface Area of a Cone 65 inches by 71 inches Calculator

The surface area of a cone is equal to the area of the base plus the area of the cone. If the cone Radius 65 inches by height 71 inches is 32913.1791459 inches².

Steps:

Given that Base radius(r) = 65 in and height(h) = 71 in

Surface Area of a Cone = $(π⋅(Radius))$⋅($(Radius)$ + $\sqrt{(Radius)^2+(Height)^2}$)

Substitute the values of the radius r = 65 in and height h = 71 in into the formula. Pi (π) is approximately equal to 3.14 .

$(π⋅(65))$⋅ $(65$ + $\sqrt{(65)^2 + (71)^2})$

Move 65 to the left of π.

$(65π)$⋅$ (65$ + $\sqrt{(65)^2 + (71)^2}$

Simplify each term

Raise 65 in to the power of 2 and 71 to the power of 2

$(65π)$⋅$ (65$ + $\sqrt{(4225.0) + (5041.0)}$ in

Add 4225.0 in and 5041.0 in

$(65π)$ in⋅$ (65$ + $\sqrt{(9266.0)}$ in

Multipy 65π in and 65 in

4225.0π in + (65π . $\sqrt9266.0$)in

Put the value of $\sqrt9266.0$ = 96.2600644 in formula

4225.0π in + (65π . 96.2600644) in

Mulitply the 65π and 96.2600644

4225.0π in + (6256.9041866π)

Add 4225.0π in and 6256.9041866π in

The result can be shown in multiple forms

Exact Form

Area = 10481.9041866π in

∴ Surface Area of Cone 65 in by 71 in is 10481.9041866π in²

Decimal Form

32913.1791459 in²

∴ Surface Area of Cylinder 65 in by 71 in is 32913.1791459 in²