Revise calculating the area of a triangle using trigonometry for your National 5 maths exam with Bitesize Scotland interactive practice quizzes covering feedback and common errors.

The trigonometric ratios sine, cosine and tangent are used to calculate angles and sides in right angled triangles. We are now going to extend trigonometry beyond right angled triangles and use it ...

Pythagoras' 2,000-year-old theorem, which states that the sum of the squares of a right triangle's two shorter sides is equal to the square of the hypotenuse, is the basis for trigonometry.

In a new peer-reviewed study, Ne'Kiya Jackson and Calcea Johnson outlined 10 ways to solve the Pythagorean theorem using trigonometry, including a proof they discovered in high school.