Properties of Parallelogram

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Being able to deduce the properties of parallelogram.

Estimated Time

40 minutes

Prerequisites/Instructions, prior preparations, if any

knowledge about parallel lines, adjacent angles, supplementary angles, diagonals, quadrilaterals,

Materials/ Resources needed

Digital : Click her to open the file

Non-digital : Paper, pencil, ruler, compass, protractor

Process (How to do the activity)

Download this geogebra file from this link.


  1. The teacher can use this geogebra file to introduce parallelograms to students.
  2. Move the vertices A or B or D and observe different parallelograms formed like square, rectangle and rhombus.
  3. Bring their attention to measures of sides, angles and diagonals.
  • Developmental Questions:
  1. Can you identify the figure ?
  2. How many sides does this figure have ?
  3. What do we call a figure with 4 sides ?
  4. Are all 4 sides equal ?
  5. What are parallel lines ?
  6. Identify the 2 sets of parallel lines.
  7. Spell out the differences between the figures formed with respect to sides, angles and diagnols.
  8. What common features do you observe in all figures/shapes formed ?

Evaluation at the end of the activity

  1. Are square, rectangle and rhombus parallelograms ?
  2. What are parallelograms ?
  3. How many pairs of parallel lines does a parallelogram have
  4. Is kite a parallelogram ?

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