Trigonometry

Further trigonometry - Higher - Test

To complete this test, you'll need to use some of the following formulas.

The sine rule:

or 

The cosine rule:
a² = b² + c² - 2bc cos A
b² = a² + c² - 2ac cos B
c² = a² + b² - 2ab cos C

Area of triangle ABC:
½ ab sin C
or, ½ ac sin B
or, ½ bc sin A

Where necessary, give answers correct to 3 s.f.

In questions 1-3, state whether you would use the sine rule or thecosine rule to answer the question. Don't find the required side or angle.

http://www.bbc.co.uk/bitesize/quiz/q66598195