Triangle Solver Calculator

What you know (count)

Pick the option matching what you measured: three sides (SSS), two sides and the angle between them (SAS), two angles and the side between them (ASA), or two angles and a side not between them (AAS).

Side a

Enter the length of side a, the side directly across from angle α, in meters between 0.001 and 10000.

Side b

Enter side b, measured in meters (0.001–10000). It's the side opposite angle β, so the value you enter feeds directly into the law of cosines calculation used to find the third side or an unknown angle .

Side c

Enter side c's length, in meters, between 0.001 and 10000.

Results

Side a is 3.00 m. Side b is 4.00 m. Side c is 5.00 m. Angle α is 36.9 degrees. Angle β is 53.1 degrees. Angle γ is 90.0 degrees. Area is 6.00 m². Perimeter is 12.00 m.

Side a
Side b
Side c
Angle α: degrees
Angle β: degrees
Angle γ: degrees
Area
Perimeter