Learn all about the trigonometry of right triangles. A right triangle is a triangle that has 90 degrees as one of its angles.

👉 Learn how to solve the word problems with trigonometry. Word problems involving angles, including but not limited to: ...

Being able to identify which formula to use, sine or cosine, and when, is necessary to answer questions on this topic successfully. Check you are confident in how to use the sine and cosine rules.