Volume of a sphere
Formula for the volume of a sphere of radius r.
別名: sphere volume, volume of a sphere, きゅうのたいせき
数式
V = (4/3) × π × r^3
変数
| V | Volume of the sphere (m³) |
|---|---|
| r | radius of the sphere (m) |
| π | pi (approx. 3.14159) (—) |
計算例
半径 r = 2 m の球の体積を求めよ。
V = \dfrac{4}{3} \pi r^{3}
V = \dfrac{4}{3} \pi \times 2^{3}
V = \dfrac{32}{3} \pi \;\mathrm{m}^{3}