GCSE Foundation and Higher · Free visual lesson

Pythagoras’ Theorem

See why a² + b² = c² works for a right-angled triangle, then use it to find a missing side. A free visual GCSE Maths lesson.

Visual GCSE Maths lessonPause and replay any step

Identify the hypotenuse, understand the areas of the three squares, and work through a missing-side example.

Try the sample questions

No account or payment needed. Check your exam specification for topic coverage.

Get an email when the full GCSE Maths subscription launches ↗