National 5 Calculating the area of a triangle using trigonometry Test questions Trigonometry can be used to find the area of a triangle when you know the length of two sides and the included angle.

Revise trigonometric ratios of sine, cosine and tangent and calculate angles in right-angled triangles with this Bitesize GCSE Maths Edexcel guide.

Explore the triangle area formula, its derivation, and practical examples to master this essential geometric concept effortlessly.

Trigonometry Formulas: Check here the list of Trigonometry Formulas for class 10, 11 and 12, starting from basic to advanced. Also, download the full trigonometry formulas pdf sheet.