Optional Mathematics

Theorems on triangles and quadrilaterals, circle theorems, coordinate geometry including the circle and conic sections, and transformations by matrix.

1. 1Theorems on Triangles and Quadrilaterals
2. 2Theorems on Circle
3. 3Coordinate Geometry — angle between lines, pair of straight lines
4. 4Conic Sections
5. 5Equation of a Circle
6. 6Transformation — reflection, rotation, translation, enlargement
7. 7Combined Transformation and Inversion
8. 8Transformation using Matrices