Surface area of triangular pyramid (tetrahedron) (given apothem, base side and slant height)

Formula

Surface area of triangular pyramid (tetrahedron) (given apothem, base side and slant height) formula
S
surface area of triangular pyramid
a
apothem length
b
length of side
l
slant height

Formula description

In geometry, a tetrahedron is a polyhedron composed of four triangular faces, three of which meet at each vertex. This formula assumes that the base is a equilateral triangle.

Calculator (how to use calculator?)

Surface area of triangular pyramid (tetrahedron) (given apothem, base side and slant height) formula
a
b
l
S
Precision

Formula code

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References

  1. Wikipedia: Tetrahedron (Triangular Pyramid).

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