From trigonometry to Pythagoras' theorem, there are plenty of mathematical terms you might remember from school – but could you actually answer a question now? After a survey found half of British ...

Pythagoras Theorem states that for a right-angled triangle, the square of the hypotenuse is equal to the sum of the squares of the other two sides. Practice applying Pythagoras’ theorem ahead of your ...

Use Pythagoras’ theorem to show a triangle is right-angled or to find one side of a right-angled triangle when two sides are known. Make sure you are confident at substituting into and manipulating ...