AHL 3.7—Radians

SL 3.1—3d space, volume, angles, midpoints

SL 3.2—2d and 3d trig

SL 3.3—Angles of elevation and depression

SL 3.4—The circle, arc and area of sector, degrees only

SL 3.5—Intersection of lines, equations of perpendicular bisectors

SL 3.6—Voronoi diagrams

AHL 3.8—Unit circle, Pythag identity, solving trig equations graphically

AHL 3.9—Matrix transformations

AHL 3.10—Vector definitions

AHL 3.11—Vector equation of a line in 2d and 3d

AHL 3.12—Vector applications to kinematics

AHL 3.13—Scalar and vector products

AHL 3.14—Graph theory

AHL 3.15—Adjacency matrices and tables

AHL 3.16—Tree and cycle algorithms, Chinese postman, travelling salesman