📐 Triangle Calculator
Calculate triangle properties
How Triangle Calculation Works
- 1Enter known values: sides, angles, or a mix (e.g., SAS, SSS, ASA).
- 2The calculator applies the law of cosines, law of sines, or Heron's formula as needed.
- 3All sides, angles, area, perimeter, and heights are displayed.
About Triangle Calculator
Calculate area, perimeter, angles, and height of any triangle. Supports input by sides, angles, or a combination using trig laws.
Frequently Asked Questions
What inputs do I need?
At least three values that define a unique triangle: three sides (SSS), two sides and an angle (SAS/SSA), or two angles and a side (ASA/AAS).
Does it handle right triangles?
Yes. It works for all triangles — right, acute, and obtuse — and will identify the type.