Geometry Tool
Law of Sines Calculator
Solve for unknown sides and angles for any triangle (AAS, ASA, SSA).
Σ The Formula
a/sinA = b/sinB = c/sinC
Real World Examples
Finding a Side
Given two angles and a side, find the other sides.
Ambiguous Case
SSA (Side-Side-Angle) may produce 0, 1, or 2 triangles.
# About This Calculator
The Law of Sines relates the length of sides of a triangle to the sines of its opposite angles. It is most useful for solving oblique triangles (non-right triangles).
Be careful with the SSA case, which is known as the "Ambiguous Case" because it can result in two different valid triangles.
Frequently Asked Questions
Is Law of Sines Calculator free to use?+
Yes, Law of Sines Calculator on Matheric is completely free to use. We believe in accessible education and utility for everyone.
How accurate is Law of Sines Calculator?+
We use standard mathematical formulas and high-precision computing algorithms to ensure results for Law of Sines Calculator are accurate for academic and professional use.
Can I use Law of Sines Calculator on my phone?+
Yes! Law of Sines Calculator is fully responsive and optimized for all devices, including smartphones, tablets, and desktops.
Do you save my data?+
No. We prioritize your privacy. All calculations are performed in your browser or temporarily processed, and we do not store your personal input data.
How do I report a bug?+
If you notice any issues with Law of Sines Calculator or have suggestions for improvement, please contact us via the link in the footer. We value your feedback!
Can I request a new feature?+
Absolutely. We are constantly expanding our toolset. Feel free to reach out with your requests, and we might build it next!
About
The Law of Sines relates the length of sides of a triangle to the sines of its opposite angles. It is most useful for solving oblique triangles (non-right triangles).
Be careful with the SSA case, which is known as the "Ambiguous Case" because it can result in two different valid triangles.