Law of Sines and Cosines for non-right triangles
Grades HSHigh School · Law of Sines & Law of Cosines
Law of Sines
a/sin A = b/sin B = c/sin C
Use when: ASA, AAS
Law of Cosines
c² = a²+b²−2ab·cos C
Use when: SSS, SAS
Choose case:
Fill in the highlighted inputs above to solve the triangle.