National 5 Using the sine and cosine rules to find a side or angle in a triangle The sine rule The sine rule can be used to find an angle from 3 sides and an angle, or a side from 3 angles and a ...

Well, there's a GIF for that: Wikimedia Next, think about the relationship between sine, cosine and the circle. Here's an illustration of the fundamental relationship between the three.

Revise using the sine and cosine rules to find a side or angle in a triangle for your National 5 maths exam with Bitesize Scotland interactive practice quizzes covering feedback and common errors.