# Triangle Angle Theorems (V1)

Interact with the applet below for a few minutes.
Then, answer the questions that follow.

*Be sure to change the locations of the triangle's WHITE VERTICES each time before you drag the slider!!!***Questions:**With the "Show Interior Angles" box checked, move the white vertices of the triangle around and use the slide. 1) From your observations, what is the sum of the measures of the interior angles of

*any triangle?*With the "Show Exterior Angles" box checked, move the white vertices of the triangle around and use the slide. 2) From your observations, what is the sum of the measures of the exterior angles of

*any triangle?*

Download our apps here: