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Artwork for Pythagoras Tower
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Pythagoras Tower

Find missing sides in right-angled triangles to build the tower.

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How to play Pythagoras Tower

Decide whether you are finding the hypotenuse or a shorter side, then add or subtract the squares. Each answer adds a storey.

Rules

  • Choose one of four answers. Each correct answer earns one point.
  • 8 questions per game, with 40 seconds per question.
  • When time runs out, the answer is revealed. Read the explanation, then continue.
  • Your maximum score is 8. There is no penalty for a wrong answer.

Worked demonstrations do not save scores. Full games keep the usual plan access and score-saving rules. Practice only, not a graded assessment or exam-board endorsement.

Free taster for Year 9 — no account needed

Ready to play?

8 questions, 40 seconds each, pitched at Year 9. You can take as long as you like — when the timer runs out the answer is simply revealed.

Try the demo