In a right angled triangle where a, b, c are the length of the sides of the triangle and A, B, and C are the vertex/angles of the triangle. C is the right angle.

In any triangle where a, b, c are the length of the sides of the triangle and A, B, and C are the vertex/angles of the triangle.

Sine Rule:

Cosine Rule:

Area of a triangle:

Addition Rules: