Geometry
Cone Surface Area
Total surface area of a cone.
Formula
Formula
A = π r (r + √r2+h2)
Variables
| Symbol | Definition | Type & range | Units | Role |
|---|---|---|---|---|
| r | base radius | real number (ℝ) | — | input |
| h | height | real number (ℝ) | — | input |
Try it yourself
Interactive calculator
Worked examples
Example 1
Givenradius r = 3, height h = 4
Result75.39822369
Example 2
Givenradius r = 5, height h = 12
Result282.7433388