Quadrilateral: a four sided figure.
Draw any quadrilateral below. Measure each angle.
What is the sum of the angles?
Answer the questions below[br]
Measure the angles of the figure below.
What is the sum of the angles?
What is the sum of angles A and B?
What is the sum of angles A and D?
What is the sum of angles B and C?
What is the sum of angles C and D?
Is side AB parallel to side DC? Explain.
Is side AD parallel to side BC? Explain.
What do you notice about angles A and C?
What do you notice about angles B and D?
Measure the sides of the figure below.
What do you notice about the of the sides of the figure?
One diagonal has been added to the figure. Measure all the angles created by the diagonal.
What do you notice about the angles?
The second diagonal has been added to the figure. Measure the segments created.
What do you notice about segments AC and BD?
Measure the angles created by the two diagonals.
What do you notice about [math]\angle[/math]AEB,[math]\angle[/math]BEC, [math]\angle[/math]CED, and [math]\angle[/math]DEA?
Summarize the information you learned about squares and its properties. Create a short presentation to give to the class.