SSS (Side-Side-Side)
Use the Law of Cosines to calculate one angle, then the Law of Sines or Cosines for the remaining parts.
c² = a² + b² - 2ab cos(C)
Solving Triangles
SAS (Side-Angle-Side)
Calculate the missing side using the Law of Cosines, then find the remaining angles using the Law of Sines.
a² = b² + c² - 2bc cos(A)
ASA (Angle-Side-Angle)
Calculate the missing angle (Sum = 180°), then use the Law of Sines to find the missing sides.
a / sin(A) = b / sin(B) = c / sin(C)
AAS (Angle-Angle-Side)
Similar to ASA, first find the missing angle, then apply the Law of Sines.
A + B + C = 180°