Triangle Solver
Geometry
SSS / SAS / ASA / SSA : all 3 sides, 3 angles, area.
Inputs
Results
Frequently asked questions
▶What does the Triangle Solver do?
The Triangle Solver is an interactive geometry lab where you change inputs and the answers update live, helping you build intuition without doing the arithmetic by hand.
▶Who should use the Triangle Solver?
Students from primary to senior secondary classes, parents helping with homework, and anyone revising geometry can use this lab to check answers and explore "what-if" scenarios.
▶Is the Triangle Solver free to use?
Yes. Every lab on math.suparnpatra.com is free and runs entirely in your browser : nothing is sent to a server.
▶Does the Triangle Solver work offline?
Once the page is loaded, all calculations run locally in JavaScript, so you can keep using it even on a flaky connection.
▶How accurate are the results?
Results use standard JavaScript double-precision arithmetic and the textbook formula for geometry. We never display scientific notation : numbers are shown as ordinary decimals you can read at a glance.