| Octagon Construction |
| Begin by drawing an arbitrary octagon. |
| Construct the midpoints of each side. |
| Connect the midpoints to form another polygon |
| Use the construct interior option under the construction menu to construct the interior of both the original octagon and the octagon formed by the midpoints. |
| Under the measure menu use the perimeter and area options to calculate the area and perimeter of both octagons |
| Calculate the ratio of the area and perimeter of the smaller octagon to the larger octagon using the calculate option under the measure menu. |