Making designs in a circle and coloring them is great fun. Exploring the possibilities is what making grids is all about. Each point on the circle invites you to find connecting chords.
Can you make chords to identify an octagon?How many triangles can you count in addition to the sets you've identified?
Use colored markers to highlight and identify:
Two sets of four rectangles
Two sets of four squares
Two sets of right triangles in three sizes
Each point on this circle has at least four new chords that are not sides of the squares. Drawing eight sets of four chords, try to construct a grid that looks like the one below.
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