An exterior angle of a polygon is an angle formed by a side and an extension of an adjacent side.
I. Triangles
1. Use the slider to resize the triangle. What is the sum of the exterior angles
of a triangle?
2. Use the red point on the triangle to change the angle measures. Now use the
slider to resize the triangle. Does changing the angle measures effect the sum
of the exterior anlges?
II. Quadrilaterals
1. Use the slider to resize the quadrilateral. What is the sum of the exterior angles of a quadrilateral?
2. Use the red point on the quadrilateral to change the angle measures. Now use the slider to resize the quadrilateral. Does changing the angle measures effect the sum of the exterior anlges?
III. Pentagons
1. Use the slider to resize the pentagon. What is the sum of the exterior angles of a pentagon?
2. Use the red point on the pentagon to change the angle measures. Now use the slider to resize the pentagon. Does changing the angle measures effect the sum of the exterior anlges?
IV. Hexagons
1. Use the slider to resize the triangle. What is the sum of the exterior angles of a hexagon?
2. Use the red point on the hexagon to change the angle measures. Now use the slider to resize the hexagon. Does changing the angle measures effect the sum of the exterior anlges?