Math
Law of Sines Calculator
Find a side from two angles and one side (AAS/ASA): a / sin A = b / sin B.
Free to use — no sign-up or login.
Side b
Angle C (°)
Amortization schedule
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This free Law of Sines Calculator covers Find a side from two angles and one side (AAS/ASA): a / sin A = b / sin B.
The law of sines relates each side to the sine of the opposite angle. Related math tools sit beside How it works, with no account required.
Using the Law of Sines Calculator
Find a side from two angles and one side (AAS/ASA): a / sin A = b / sin B. Typical inputs are Angle A (°), Side a and Angle B (°). How it works beside the form states the identity the Law of Sines Calculator applies.
FAQ
How do I use the Law of Sines Calculator?
Open the Law of Sines Calculator, fill Angle A (°), Side a and Angle B (°), and read the result. The law of sines relates each side to the sine of the opposite angle.
What formula does the Law of Sines Calculator use?
The Law of Sines Calculator uses the identity in How it works. In words: The law of sines relates each side to the sine of the opposite angle.