AS+2.4+Trigonometry

=2.4 Trigonometry=

The Achievement Standard for this topic.

This topic looks at solving triangles which don't have right-angles in them ie finding sides and angles, by using the Sine Rule, the Cosine Rule, finding the area of triangles (an alternative way to the "half base times the height" formula). There's also a little bit of work to do on circles ie finding the length of an arc and the area of a sector of a circle.