# Polygon Area

Using our knowledge from the previous lesson of the properties of regular polygons to answer the following questions.

- Draw in the appropriate amount of isosceles triangles to fill the regular octagon.

- Use the isosceles triangles to find the perimeter of the octagon.
- Calculate the area of the octagon.

If a visual or further explanation is needed, the following link can help. It also offers a different look at how the formula can be developed.