Quadrilateral Sum Investigation
Use the quadrilateral below to answer the questions provided.
Add angles A, B, C, and D. What is the total sum?
[math]360^{^{\circ}}[/math]
Click and drag the vertices of the quadrilateral to new locations. Add the new measures of angles A, B, C, and D. What is the new sum?
[math]360^{^{\circ}}[/math]
Does the total sum of angles shown in the quadrilateral change if you change the size or shape of the figure?
No
Yes
So, the interior angles of a quadrilateral always add to what value?
[math]360^{^{\circ}}[/math]
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Information: Quadrilateral Sum Investigation