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A Short introduction to using Logo. This is the first in a twelve part series.

LOGO Challenge 1 - Star Square

Can you use LOGO to create this star pattern made from squares. Only basic LOGO knowledge needed.

LOGO Challenge 5 - Patch

Using LOGO, can you construct elegant procedures that will draw this family of 'floor coverings'?

LOGO Challenge 9 - Overlapping Polygons

Age 7 to 16
Challenge Level

LOGO Challenge 9 - Overlapping Polygons

REPEAT :N [ FD 40 RT 360/:N]

It was while experimenting with the procedure above that the three overlapping motifs below were produced. In each case the motif is a regular dodecagon.

      Why not experiment with different values of N?

To what extent will sets of Ngons overlap and produce differing tiling patterns?

What happens if N is very large? You might want to make the distance you travel forward smaller to see what happens. If you are struggling, why not look at First Forward into LOGO numbers 4 and 6 and also in LOGO Challenge 10 - Circles .

What is the RT 360/:N doing in the procedure?

Try some substitution for different values of N and see how this helps you to draw different polygons.

Try N = 3. Why isn't the answer 60, which is the size of the angle of an equilateral triangle?

N.B. As you walk around any polygon what is the total angle you will always turn through no matter what the size of the polygon?

360 degrees - which is the sum of the external, not the interal angles.