#9A
Use of sine, cosine and tangent of angles up to 180°
Angles will be measured in degrees and decimals of a degree
#9B
Solution of problems in two and three dimensions by calculation and by drawing
Use of the sine and cosine rule
Area of a triangle \(= \frac{1}{2}ab\sin{C}\)
Questions on latitude and longitude will not be set
Calculations of the angle between two planes, or of the angle between a straight line and a plane will not be set
#9C
Angles of elevation and depression
Angles will be given in degrees and decimals of a degree
#9D
Bearings
The normal convention of bearings being measured clockwise will be adopted