Polygons

Control the Roboidz with your knowledge of angles in this exciting Mission 2110 game.

Examine the angles in a triangle, quadrilateral, pentagon, hexagon, heptagon or octagon. Can you find a relationship between the number of sides and the sum of the interior angles? Choose a polygon, and reshape it by dragging the vertices to new locations. As the figure changes shape, the angle measures will automatically update.

Everything you want and need to know about quadrilaterals! You can learn about all the different kinds of quadrilaterals as well as make your own!

Quadrilateral Puzzle! In this puzzle, a large quadrilateral is subdivided into smaller quadrilaterals.