# Quadrilateral Interior & Exterior Angle Sum Theorems (V2)

**Directions:**Mess around with the applet below for a few minutes. As you do,

**BE SURE TO DRAG THE PINK VERTICES around**. After interacting with this applet, please answer the questions that appear below it.

**Questions:**1) What can you conclude about the

**sum of the interior angle measures**of a quadrilateral? Explain how you came to this conclusion. 2) What can you conclude about the

**sum of the exterior angle measures**of a quadrilateral? Explain how you came to this conclusion.

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