The Compendium Geometry is an eBook providing facts, formulas and explanations about geometry.

Home Analytic Geometry Triangle Properties of Arbitrary Triangles
See also: Properties of a Right Triangle 
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Properties of Arbitrary Triangles

The following formulas are valid for any triangle. Please note that there are simpler formulas for special triangles such as a right triangle.

Known properties Properties to calculate Area A
three sides known:
a, b, c

two sides and one angle are known:
a, b, γ

two sides and one angle are known:
a, b, α

two sides and one angle are known:
a, b, β

two angles and one side are known:
α, β, a

two angles and one side are known:
α, β, c

Home Analytic Geometry Triangle Properties of Arbitrary Triangles

Last Update: 2011-01-11