Constructing a Parallelogram.

Because there are many steps involved in this activity, I have decided to do a demonstration. You can either watch the video completely as you take down the steps on a sheet of paper, or you pause the video as you perform the exercise. Take time here to familiarize yourself with the app tools that you’ll use for this exercise. This is optional – you don’t have to memorize them. I have provided just the necessary tools that you need for this exercise, and if you are carrying out the activity with physical objects, then you must decide on what mathematical set of instruments that will perform the various functions.

(Note: keep in mind that at the end of each numbered step, you must click on the Move tool to deselect before performing the next step.


  • Move Tool: – Used to deselect an action so that it is no longer active.​
  • Point Tool: – Used to plot points.​
  • Line Tool: – Used to draw line segments.​
  • Parallel Line Tool:  – Used to draw parallel lines. ​
  • Intersect Tool:  – Used to mark the intersection of lines.​
  • Show/Hide label Tool: – used to show or hide labels.
  • Angle Tool: – Used to mark and measure angles.
  • Show/Hide Object Tool:  – Used to show or hide the name of an object or point. ​
  • Polygon Tool: – Used to draw polygons. ​
  • Distance or Length Tool: – Used to measure and labels length or distance.​
  • Segment Tool: – Used to connect points on the graph.​
  • Text Tool: – Used to write text.​
  • Delete Tool:  – This is the eraser tool. It is used to undo an action. ​
  • Undo Tool:  – Can also be used to undo actions beginning with the most recent. This can be reversed by the Undo Tool: 

Investigating the different types of Parallelograms.

  • Check the two boxes in the figure below to see the angles and side lengths.​
  • Drag the blue points around to see different sizes of the parallelogram.

Investigating the Properties of a Parallelogram.

  • Move the slider slowly to the right and observe the figure.​

Investigating if a figure is a Parallelogram.

  • Move the points in the graph below so that the figure forms a parallelogram.​
  • Use any 1 or more of the provided tools to verify that your quadrilateral is indeed a parallelogram.