SL 3.2—Triangle trigonometry Topic Practice
SL 3.2—Triangle trigonometry Topic Practice
Students practise solving non-right and right triangle problems using sine rule, cosine rule, area formula, and bearing calculations from diagrams and field data.
How this is tested
- use cosine rule to find angle BÂC when three side lengths of triangle ABC are known or derivable
- apply cosine rule to find DC given two sides and included angle of 170° in triangle DBC
- calculate NV or PN̂V in a triangle with two sides and included angle using cosine or sine rule