Area and Perimeter of Regular
Polygons

*Construction of a Regular Octagon*

1.) Begin with an arbitrary square. (To see
the construction of a square, click here.)

2.) Find the center of the square by constructing
the diagonals and marking where they intersect.

3.) Construct four circles. Each corner of
the square should be the center of one of the circles. The radius
length should be equal half the length of one of the diagonals.

4.) Construct a point every where the circles
intersect the original square. Connecting these points will make
up your octagon.

5.) If we hide the path objects in GSP, we
see the following:

Click here to see
this construction in GSP

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