Right-angled triangles and Pythagoras' theoremLesson 1 of 8Free preview
Pythagoras' theorem by moving four triangles
The same four triangles leave one big square uncovered, or two smaller squares. So the areas must match.
Right-angled triangles and Pythagoras' theoremLesson 1 of 8Free preview
The same four triangles leave one big square uncovered, or two smaller squares. So the areas must match.