FORM I |
FORM
II |
FORM III |
FORM
IV |
QUIZ |

### 28.0.0 REFLECTION AND CONGRUENCE (12 Lessons)

28.2.1 lines and planes of symmetry

28.2.2 mirror lines and construction of objects and images.

28.2.3 reflection as a transformation

28.2.4 reflection in the Cartesian plane.

28.2.5 direct and opposite congruency.

28.2.6 Congruency tests (SSS, SAS, AAS, ASA and RHS)

**Notes**

• Practical aspects should be used as much as possible

• ASS does not prove triangles congruent except when the triangles are right angled

• Images are oppositely congruent to their objects under reflection

**• Suggested Resources**

Mirrors, Cartesian plane, various symmetrical objects, tracing and graph papers, real life

experiences

**• Suggested Further Assessment**

- Practical exercises using

minors and constructions

- Short test on 28.0.0