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Semicircle formulas
3 formulas for Semicircle, from the Mensuration (2D & 3D) section of the Quantix formula library. Tap 🧮 next to a formula to solve it for any variable with step-by-step working.
| Name | Formula | Note |
|---|---|---|
| Area | A = ½πr² 🧮 Solve step by step | |
| Perimeter (arc + diameter) | P = πr + 2r = r(π + 2) 🧮 Solve step by step | |
| Arc length | L = πr 🧮 Solve step by step |
What the letters mean
| r | radius |
Half of a circle cut along a diameter.
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Related: Mensuration (2D & 3D)
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