Octahedron
The edge, volume, surface area and sphere radii of a regular octahedron from one value.
What to find:
A regular octahedron has 8 faces, 12 edges and 6 vertices.
The octahedron calculator finds the edge, volume, surface area and sphere radii of a regular octahedron from one known value.
V = √2/3 · a³, S = 2√3 · a²
R = a√2/2, r = a√6/6
Example. For a = 3: V = 9√2 ≈ 12.73, S = 18√3 ≈ 31.18.
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