Pythagoras’ Theorem
Jargon-Free Definition
A rule for finding sides in a right-angled triangle.
QCAA/AC9 Definition
A theorem stating that, in a right-angled triangle, the square of the hypotenuse equals the sum of the squares of the other two sides.
Examples of Word Use in School
- Use Pythagoras’ Theorem to Solve the missing side.
- Check whether the triangle is right-angled.
- Substitute the side lengths into the theorem.
Mathematical Definition
For a right-angled triangle with side lengths