Interactive Triangle Learning Tool

Explore triangle properties and learn geometry concepts

Enter Triangle Sides

Input the lengths of the three sides of your triangle

Triangle Inequality Theorem: The sum of any two sides must be greater than the third side.

✅ Valid triangle!
Triangle Properties

Calculated properties based on your input

Triangle Type

Right

Interior Angles

Angle A: 36.87°

Angle B: 53.13°

Angle C: 90.00°

Visual Representation

See your triangle drawn to scale

Triangle Facts & Formulas

Triangle Inequality Theorem

The sum of the lengths of any two sides of a triangle must be greater than the length of the third side.

Triangle Types

Equilateral (all sides equal), Isosceles (two sides equal), Scalene (all sides different), Right (one 90° angle)