National 4 Trigonometric skills Calculating an angle in a right-angled triangle Trigonometry helps solve problems involving right-angled triangles using the sine, cosine or tangent ratios.

For a right-angled triangle, follow these steps to calculate the length of a side, x, when another side and an angle Ɵ is given: Label the two sides that contain information in the diagram with ...

Area of Triangle Formula: In this article, we cover the definition of triangle and its various types based on the angles and length of side. Besides, we will see how to calculate the area of a ...

Discusses the properties and types of triangles, explaining that a triangle is a closed figure with three sides and angles. It categorizes triangles into equilateral, isosceles, scalene, obtuse ...

Trigonometry is a branch of mathematics that studies relationships between the sides and angles of triangles. Trigonometry is found all throughout geometry, as every straight-sided shape may be ...