Sum of the Interior Angles in a Pentagon
Connect vertex A to every other vertex in the polygon with a segment by moving the red sliders all the way to the right
Think About and Answer the Following Questions
What do you remember about the sum of the angles in a triangle?
How many sides does a pentagon have?
How many triangles were you able to create in the pentagon above?
What might you guess then would be the sum of all the angles in a pentagon?