[b]1. Aim: [/b][br] Investigating the properties of the angles, sides and diagonals of certain quadrilaterals through the use of the software GeoGebra.[br][br][b]2. Objective: [/b][br] At the end of the module, a learner through the use of the software GeoGebra, must be able to determine the properties of the angles, sides and diagonals of a parallelogram, [br] rectangle, rhombus and square.[br][br]Complete the workbook by using this applet.[br][br][b]N.B. The workbook will be given to learners[/b]