Created By : Abhinandan Kumar

Reviewed By : Rajashekhar Valipishetty

Last Updated : May 30, 2023


Enter the value of base radius(r)

Enter the Value of height(h)


If the cone Radius 4 foot by height 13 inches is 102.2899661 foot2 or 14729.7551278 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 4 foot by height 13 inches is 102.2899661 foot2 or 14729.7551278 inches2.


    Surface Area of a Cone 4 ft by 13 in in other units

Value unit
0.031178 km2
0.0193731 mi2
31.1779817 m2
102.2899661 ft2
1227.4795932 in2
34.0966554 yd2
3117.7981667 cm2
31177.9816673 mm2

Steps:

Given that Base radius(r) = 4 ft and height(h) = 13 in

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

Substitute the values of the radius r = 4 ft and height h = 13 in into the formula. Pi (π) is approximately equal to 3.14 .

      Unit Conversion of 13 in = 1.0833333 ft

13 Inches is 1.0833333 feet

To convert Inches to Feet

we know that, 1 Inches = 0.0833333 Feet or
                         1 Foot = 1/12 foot

To convert Inches to Feet, divide the inche value by 12.

Result in Foot: 13 × in/12 × ft/in

Cancel The Comman factor of in

Result in Feet: $13\above 1pt12$

Divide the 13 by 12

Result in Feet: 1.0833333 feet

∴ 13 Inches = 1.0833333 feet


$(π⋅(4))$⋅ $(4$ + $\sqrt{(4)^2 + (1.0833333)^2})$ ft

Move 4 to the left of π.

$(4π)$⋅$ (4$ + $\sqrt{(4)^2 + (1.0833333)^2}$

Simplify each term

Raise 4 ft to the power of 2 and 1.0833333 to the power of 2

$(4π)$⋅$ (4$ + $\sqrt{(16.0) + (1.173611)}$ ft

Add 16.0 ft and 1.173611 ft

$(4π)$ ft⋅$ (4$ + $\sqrt{(17.173611)}$ ft

Multipy 4π ft and 4 ft

16.0π ft + (4π . $\sqrt{ 17.173611 }$) ft


Put the value of $\sqrt{ 17.173611 }$ = 4.1441056 in formula

16.0π ft + (4π . 4.1441056) ft

Mulitply the 4π and 4.1441056

16.0π ft + (16.5764223π)

Add 16.0π ft and 16.5764223π ft

The result can be shown in multiple forms

Exact Form

Area = 32.5764223π ft

∴ Surface Area of Cone 4 ft by 13 in is 32.5764223π ft2

Decimal Form

102.2899661 ft2

∴ Surface Area of Cylinder 4 ft by 13 in is 102.2899661 ft2

or

      Unit Conversion of 4 ft = 48.0 in

4 Foot is 48.0 inches

To convert Foot to Inches

we know that, 1 Foot = 12 inches

To convert Foot to inches, multiply the foot value by 12.

Result in Foot: 4 ft × 12 × in/ft

Cancel The Comman factor of ft

Result in Inches: (4 x 12 in)

Multiply 4 into 12

Result in Inches: 48.0 inches

∴ 4 Foot = 48.0 inches


$(π⋅(48.0))$⋅ $(48.0$ + $\sqrt{(48.0)^2 + (13)^2})$ in

Move 48.0 to the left of π.

$(48.0π)$⋅$ (48.0$ + $\sqrt{(48.0)^2 + (13)^2}$

Simplify each term

Raise 48.0 in to the power of 2 and 13 to the power of 2

$(48.0π)$⋅$ (48.0$ + $\sqrt{(2304.0) + (169.0)}$ in

Add 2304.0 in and 169.0 in

$(48.0π)$ in ⋅ $ (48.0$ + $\sqrt{(2473.0)}$ in

Multipy 48.0π in and 48.0 in

2304.0π in + (48.0π . $\sqrt{ 2473.0 }$) in

Put the value of $\sqrt{2473.0}$ = 49.729267 in formula

2304.0π in + (48.0π . 49.729267) in

Mulitply the 48.0π and 49.729267

2304.0π in + (2387.0048178π)

Add 2304.0π in and 2387.0048178π in

The result can be shown in multiple forms

Exact Form

Area = 4691.0048178π in

∴ Surface Area of Cone 4 ft by 13 in is 4691.0048178π ft2

Decimal Form

14729.7551278 in2

∴ Surface Area of Cylinder 4 ft by 13 in is 14729.7551278 ft2