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.

The AngleComparison layer is an analogy for angle calculation using cosine formula using inner product. It is used in the case when we use X, Y, Z coordinates and want to include information between ...

I know the formula looks complicated, but it's pretty straight forward. If I want to find the cosine of 0.1792 radians from the table above, I would get 0.984 - try it yourself.