the geometry

Proof Companion

Create and practice Geometry proofs.



Solve Random Proof



Custom Proof Creator


Geometry teachers can use our editor to upload a diagram and create a Geometry proof to share with students. In the proof editor, you can dynamically add steps and optionally pin their positions in the proof as hints for students. The editor gives you easy access to common Geometry symbols.

Create a Proof

How It Works


After creating a proof, teachers can send students a link to practice at home. The steps of the proof are shuffled each time a student visits it. Students simply drag and drop the statements and reasons to their proper position to have their work instantly graded.

Show Me