Trigonometry can be used to find the length of a side in a triangle. Trigonometry close trigonometryThe study of sides and angles in triangles. can be used to find a missing side in a right-angled ...

A high school teacher didn't expect a solution when she set a 2,000-year-old Pythagorean Theorem problem in front of her ...

Learn how Pythagoras and the converse of Pythagoras Theorem can be used to solve problems involving right-angled triangles as part of National 5 Maths.