Cone Slant Height Calculator

(radius)


units

(height)


units

units
View Calculation

How to use this Cone Slant Height Calculator 🤔

  1. Enter ✎ value for radius (r).
  2. Enter ✎ value for height (h).
  3. As soon as you enter the required input value(s), the Cone Slant Height is calculated immediately, and displaed in the output section (present under input section).

Formula

To calculate the cone slant height, you can use the following formula.

\(l = \) \( \sqrt{ r ^2 + h ^2 } \)

where

Calculation

Once you enter the input values in the calculator, the output parameters are calculated.

Examples

The following examples cover how to calcualte the Slant Height when radius, and height are given.

1. What is the Slant Height of Cone whose radius is 20 units, and height is 10 units?

Answer

Given:

  • radius, r = 20 units
  • height, h = 10 units

The formula to find the Slant Height of a Cone is:

l = \( \sqrt{ r ^2 + h ^2 } \)

Substitute given values in the above formula.

l = \( \sqrt{20^2 +10^2 } \)

l = 22.36 units

∴ Slant Height, l = 22.36 units

2. What is the Slant Height of Cone whose radius is 1 units, and height is 0.5 units?

Answer

Given:

  • radius, r = 1 units
  • height, h = 0.5 units

The formula to find the Slant Height of a Cone is:

l = \( \sqrt{ r ^2 + h ^2 } \)

Substitute given values in the above formula.

l = \( \sqrt{1^2 +0.5^2 } \)

l = 1.12 units

∴ Slant Height, l = 1.12 units