Week 9 - Pythagorean Theorem

Must Know

• Use the Pythagorean Theorem to find the missing lengths of Right-Angled Triangles

What is a right-angled triangle?

A right-angled triangle is a particular triangle which has two really important features:

• One of its interior angles is 90°, also known as a right-angle. The right-angle is often shown as a small square box in the corner of the triangle

• The side opposite the right-angle is always the longest side of the triangle and is called the hypotenuse

Pythagorean Theorem

You made it - now we can finally start learning about the Pythagorean Theorem and how we can use it to solve problems! The Pythagorean Theorem explore the special relationship between the three side lengths of a right-angled triangle. Check out this video which demonstrates this visually.

3D Pythagoras

These might be a little tricky, but try and use your knowledge of Pythagoras to attempt these 3D Pythagoras problems. The trick is to form a 2D Right-Angled Triangle inside the 3D shape!