A lesson on solving non right angled triangles. It shows which form of the sine rule to use to find a side or an angle, works through examples and three practice problems with answers, then introduces the cosine rule for finding a side and for finding an angle when all three sides are known.
What this presentation covers
- labelling a triangle for the sine rule
- using the sine rule to find a side
- using the sine rule to find an angle
- practice problems with answers
- when the sine rule is not enough
- the cosine rule
- finding an angle from three sides
Level: GCSE / A level
Slides: 17
Format: PowerPoint (.pptx)
Contributed by: Andrew Godin