the geometry

Proof Companion

Create and practice Geometry proofs.



Solve random proof.



Tools for the teacher


Geometry teachers can use our editor to upload a diagram and create a Geometry proof to share with students. The proof editor can dynamically add steps, fix their positions in the proof, and upload a diagram.

Resources for students


Students can practice proof-solving skills from a list of featured proofs or by category. Simply drag and drop the statements and reasons to their proper position and click grade. The steps are shuffled each time you visit a proof.




Featured proofs

Choose from a list of featured proofs below