This triangle calculator takes the lengths of three sides, checks whether they can form a valid triangle, and then finds the perimeter, area (using Heron's formula), and triangle type (equilateral, isosceles, scalene, and whether it's a right triangle).
Use it for geometry homework, basic engineering sketches, or anytime you need quick triangle properties from side lengths without drawing it to scale.
Enter your information in the fields above, run the calculation, and review the result to understand what it means for your situation.
Look at the output in the context of your overall goals rather than in isolation. Consider how sensitive the result is to changes in your inputs (for example, adjusting the amount, rate, or time) to understand which factors matter most.
This tool is a simplified model and does not capture every nuance of real life. Treat it as a planning aid, not a guarantee. For important financial or health decisions, combine these results with professional advice and more detailed analysis.