Google Classroom
GeoGebraGeoGebra Razred

Octagon Angle Theorems

Interact with the app below for a few minutes.   Then, answer the questions that follow.   Be sure to change the locations of this octagon's vertices each time before you drag the slider!

Determine the sum of the measures of the interior angles of this octagon.

What is the sum of the measures of the exterior angles of this octagon?