Calculate triangle properties
Our Triangle Calculator solves triangles using various inputs including sides (SSS), two sides and angle (SAS), two angles and side (AAS), or base and height for area. It computes all triangle properties: area, perimeter, all angles, and all sides using trigonometry and geometric formulas. Perfect for geometry, trigonometry, construction, engineering, and navigation. Supports right, acute, obtuse, isosceles, equilateral, and scalene triangles.
Multiple input methods (SSS, SAS, AAS, etc.)
All triangle types supported
Area, perimeter, angles, sides
Pythagorean theorem for right triangles
Law of sines and cosines
Visual triangle diagram
Step-by-step solutions
Enter known triangle measurements (three sides, or two sides and angle, etc.). The calculator determines if the triangle is valid and computes all other properties using appropriate formulas.
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