Mathematics
Law of cosines
Calculates side c or angle C from c² = a² + b² - 2ab cos(C).
Related calculators
Law of sines
Calculates a side or angle from a / sin(A) = b / sin(B).
Triangle area from two sides and angle
Calculates area, side a, side b, or included angle from area = 0.5 * a * b * sin(C).
Cosine in a right triangle
Calculates cosine, the adjacent side, the hypotenuse, or the angle.
Degrees to radians
Converts an angle from degrees to radians and back.
Radians to degrees
Converts an angle from radians to degrees.
Sine in a right triangle
Calculates sine, the opposite side, the hypotenuse, or the angle.