Geometry
Cone Slant Height
Slant height of a cone.
Formula
Formula
ℓ = √r2 + h2
Variables
| Symbol | Definition | Type & range | Units | Role |
|---|---|---|---|---|
| r | base radius | r ≥ 0 | length | input |
| h | height | h ≥ 0 | length | input |
| ℓ | slant height | ℓ ≥ 0 | length | result |
Try it yourself
Interactive calculator
Worked examples
Example 1
Givenradius r = 3, height h = 4
Result5
Example 2
Givenradius r = 5, height h = 12
Result13