Senior 3 Mathematics: Three-Dimensional Geometry Notes and Exercises

This resource explains three-dimensional geometry through definitions, worked examples and practice exercises. It introduces properties of solids and projections before covering angles between intersecting or skew lines, lengths within solids, and angles between lines and planes or between two planes. Problems involve cubes, cuboids, pyramids, prisms, cones and tetrahedra, with applications including a house roof. Learners use Pythagoras’ theorem and trigonometric ratios to calculate diagonals, heights and angles, and identify relevant lines and planes in referenced diagrams.