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Solids

Volume and surface area of spheres, cylinders, cones, boxes and pyramids.

Volume formulas come in families: a prism or cylinder is base × height, a pyramid or cone is a third of that, and a sphere is 4/3 πr³. Every solid here is rendered in 3D — drag to rotate it.

Arbejdstxrd eksempel: volume of a sphere with radius 3

Geometry · Solids

Volume of a sphere with radius 3

Trin for trin

  1. r = 3

    Sphere.

  2. V = \tfrac{4}{3}\pi r^3 = 36 \pi \approx 113.10

    Volume.

  3. S = 4\pi r^2 = 36 \pi \approx 113.10

    Surface area.

Afslør svaret
V = 36 \pi \approx 113.10,\quad S = 36 \pi

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