Learn how to solve for the lengths of the sides and the measures of the angles of a triangle using the law of cosines. The ...

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

a missing side in a right-angled triangle when another side and an angle are known. a missing angle in a right-angled triangle when two sides are known. In these formulae, the Greek letter θ (theta) ...

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.