Law of Cosines Calculator
Solve triangles using the law of cosines
Formula
c² = a² + b² - 2ab·cos(C)
Generalization of Pythagorean theorem for any triangle.
Examples
a=5, b=7, C=60°
c ≈ 6.24.
Frequently Asked Questions
About Law of Cosines
Solve triangles using the law of cosines.
Related Calculators
Percentage Calculator
Calculate percentages, increases, and decreases
Use calculator
Fraction Calculator
Add, subtract, multiply, and divide fractions
Use calculator
Average Calculator
Calculate mean, median, and mode of numbers
Use calculator
Standard Deviation Calculator
Find standard deviation of a data set
Use calculator