Calculators

Solves for sides of a special 45-45-90 right triangle (isosceles right triangle).

Calculates the sides of a 30-60-90 right triangle given one side length.

This calculator determines if three given side lengths can form a valid triangle based on the Triangle Inequality Theorem.

Calculates the missing angle of a triangle given the other two angles.

Calculates the missing sides and angles of a right-angled triangle using the Pythagorean theorem and trigonometric functions.

Calculates the length of a side of a right-angled triangle given the other two sides (a² + b² = c²).

Calculates the circumference (perimeter) of a circle given its radius or diameter.

Calculate the sides and angles of a triangle using the Law of Cosines.

Calculates the area of a circle given its radius or diameter.

Calculates the area of a triangle using different methods: base and height, or side lengths (using Heron's formula).