Online Calculators > Math Calculators > Law of Sines Calculator

# Law of Sines Calculator

## Law of Sines Calculator

Solve for
Side a
Side b
Side c
Angle X ° (in Degree)
Angle Y ° (in Degree)
Angle Z ° (in Degree)
 Results Side a 32.31 Side b Side c Angle X Angle Y Angle Z

## Law of Sines Formula

The law of sines formula is:

asinX=bsinY=csinZ

(The angle X is the opposite angle of the side a, angle Y is the opposite angle of side b, and angle Z is the opposite angle of side c)

To calculate a side of a triangle, for example, calculating side a, we need to know angle X, side b, and angle Y (OR side c and angle Z).
The formula is: (angles measured in degree)

a=bsinXsinY
a=csinXsinZ

To calculate an angle of a triangle, for example, calculating angle X, we need to know side a, side b, and angle Y (OR side c and angle Z).

X= sin-1(asinYb)
X= sin-1(asinZc)

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