# Surface Area of a Cone 77 foot by 64 foot Calculator

Enter the value of base radius(r)

Enter the Value of height(h)

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 64 foot is 42825.2636345 foot2.

Surface Area of a Cone 77 ft by 64 ft in other units

Value unit
13.0531404 km2
8.1108655 mi2
13053.1403558 m2
42825.2636345 ft2
513903.163614 in2
14275.0878782 yd2
1305314.0355796 cm2
13053140.3557956 mm2

## Surface Area of a Cone 77 foot by 64 foot

Steps:

Given that Base radius(r) = 77 ft and height(h) = 64 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 = 64 ft into the formula. Pi (π) is approximately equal to 3.14 .

$(π⋅(77))$⋅ $(77$ + $\sqrt{(77)^2 + (64)^2})$

Move 77 to the left of π.

$(77π)$⋅$(77$ + $\sqrt{(77)^2 + (64)^2}$

Simplify each term

Raise 77 ft to the power of 2 and 64 to the power of 2

$(77π)$⋅$(77$ + $\sqrt{(5929.0) + (4096.0)}$ ft

Add 5929.0 ft and 4096.0 ft

$(77π)$ ft⋅$(77$ + $\sqrt{(10025.0)}$ ft

Multipy 77π ft and 77 ft

5929.0π ft + (77π . $\sqrt10025.0$)ft

Put the value of $\sqrt10025.0$ = 100.124922 in formula

5929.0π ft + (77π . 100.124922) ft

Mulitply the 77π and 100.124922

5929.0π ft + (7709.6189919π)

Add 5929.0π ft and 7709.6189919π ft

The result can be shown in multiple forms

Exact Form

Area = 13638.6189919π ft

∴ Surface Area of Cone 77 ft by 64 ft is 13638.6189919π ft2

Decimal Form

42825.2636345 ft2

∴ Surface Area of Cylinder 77 ft by 64 ft is 42825.2636345 ft2

### Surface Area & Volume of a Cone Calculations

Here are examples of Surface Area of a Cone calculations.

Here are examples of Volume of a Cone calculations.