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 18 foot by height 68 meters is 13667.7841455 foot2 or 1269.7786598 meters2.


The surface area of a cone is equal to the area of the base plus the area of the cone. If the cone Radius 18 foot by height 68 meters is 13667.7841455 foot2 or 1269.7786598 meters2.


    Surface Area of a Cone 18 ft by 68 m in other units

Value unit
4.1659406 km2
2.5886019 mi2
4165.9406075 m2
13667.7841455 ft2
164013.409746 in2
4555.9280485 yd2
416594.0607548 cm2
4165940.6075484 mm2

Steps:

Given that Base radius(r) = 18 ft and height(h) = 68 m

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

Substitute the values of the radius r = 18 ft and height h = 68 m into the formula. Pi (π) is approximately equal to 3.14 .

      Unit Conversion of 68 m = 223.09712 ft

68 Meters is 223.09712 foot

To convert Meters to Foot

we know that, 1 Meter = 3.28084 Foot

To convert Meter to Foot, multiply the meter value by 3.28084.

Result in Foot: 68 m × 3.28084 × ft/m

Cancel The Comman factor of m

Result in Foot: (68 x 3.28084 ft)

Multiply 68 into 3.28084

Result in Foot: 223.09712 foot

∴ 68 Meters = 223.09712 foot


$(π⋅(18))$⋅ $(18$ + $\sqrt{(18)^2 + (223.09712)^2})$ ft

Move 18 to the left of π.

$(18π)$⋅$ (18$ + $\sqrt{(18)^2 + (223.09712)^2}$

Simplify each term

Raise 18 ft to the power of 2 and 223.09712 to the power of 2

$(18π)$⋅$ (18$ + $\sqrt{(324.0) + (49772.3249523)}$ ft

Add 324.0 ft and 49772.3249523 ft

$(18π)$ ft⋅$ (18$ + $\sqrt{(50096.3249523)}$ ft

Multipy 18π ft and 18 ft

324.0π ft + (18π . $\sqrt{ 50096.3249523 }$) ft


Put the value of $\sqrt{ 50096.3249523 }$ = 223.8220833 in formula

324.0π ft + (18π . 223.8220833) ft

Mulitply the 18π and 223.8220833

324.0π ft + (4028.7974986π)

Add 324.0π ft and 4028.7974986π ft

The result can be shown in multiple forms

Exact Form

Area = 4352.7974986π ft

∴ Surface Area of Cone 18 ft by 68 m is 4352.7974986π ft2

Decimal Form

13667.7841455 ft2

∴ Surface Area of Cylinder 18 ft by 68 m is 13667.7841455 ft2

or

      Unit Conversion of 18 ft = 5.4864 m

18 Foot is 5.4864 meters

To convert Feet to Meter

we know that, 1 Foot = 0.3048 Meter

To convert Foot to meters, multiply the feet value by 0.3048.

Result in Meter: 18 ft × 0.3048 × m/ft

Cancel The Comman factor of ft

Result in Meters: (18 x 0.3048 m)

Multiply 18 into 0.3048

Result in Meters: 5.4864 meters

∴ 18 Foot = 5.4864 meters


$(π⋅(5.4864))$⋅ $(5.4864$ + $\sqrt{(5.4864)^2 + (68)^2})$ m

Move 5.4864 to the left of π.

$(5.4864π)$⋅$ (5.4864$ + $\sqrt{(5.4864)^2 + (68)^2}$

Simplify each term

Raise 5.4864 m to the power of 2 and 68 to the power of 2

$(5.4864π)$⋅$ (5.4864$ + $\sqrt{(30.10058496) + (4624.0)}$ m

Add 30.100585 m and 4624.0 m

$(5.4864π)$ m ⋅ $ (5.4864$ + $\sqrt{(4654.100585)}$ m

Multipy 5.4864π m and 5.4864 m

30.100585π m + (5.4864π . $\sqrt{ 4654.100585 }$) m

Put the value of $\sqrt{4654.100585}$ = 68.2209688 in formula

30.100585π m + (5.4864π . 68.2209688) m

Mulitply the 5.4864π and 68.2209688

30.100585π m + (374.2875233π)

Add 30.100585π m and 374.2875233π m

The result can be shown in multiple forms

Exact Form

Area = 404.3881082π m

∴ Surface Area of Cone 18 ft by 68 m is 404.3881082π ft2

Decimal Form

1269.7786598 m2

∴ Surface Area of Cylinder 18 ft by 68 m is 1269.7786598 ft2