A self-guided practice test covering six polygon topics, sequenced from foundational to advanced. Work top to bottom — each question checks itself instantly, then explains the reasoning.
Topics are mixed throughout the test, not blocked by unit — this interleaving is intentional and helps the ideas stick. Difficulty rises gradually across five parts of 20 questions each. Tap a hint before answering if you need a nudge; every question reveals a full explanation the moment you answer.