Enter two angles and this caltulator will compute third one for you.
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Calculations data - enter values, that you know here
Third angle (γ)
Second angle (β)
First angle (α)
Result: Third angle (γ)
γ = pi - α - β
Result step by step
pi + -1 / 2 pi + -1 / 4 pi
Added polynomial terms
1 / 4 pi
Numerical result step by step
1 / 4 * 3.141592653589793
(1 * 3.141592653589793) / 4
3.1416 / 4
A triangle is a polygon with three edges and three vertices.
The sum of angles in triangle is 180 degrees or π radians.
Due to length of the sides we distinguish below types of triangles:
scalene triangle - all sides have different length,
isosceles triangle - at least two sides have the same length,
equilateral triangle - all sides have the same length.
Due to angles measure we distinguish below types of triangles:
acute triangle - all angles measure less than 90 degrees (π/2 radians),
right triangle - one of angle measures exacly 90 degrees (π/2 radians),
obtuse triangle - one of angle measures greater than 90 degrees (π/2 radians).