CIRCLES
Any of the following lines will make a single circle:

            repeat 10[fd 10 lt 36]
            repeat 18[fd 5  rt 20]
            repeat 40[fd 2  lt  9]
            repeat 12[fd 4  rt 30]

BY THE WAY: The following lines make the following shapes:

            Pentagon: repeat 5[fd 10 rt 72]
            Hexagon:  repeat 6[fd 20 lt 60]
            Octagon:  repeat 8[fd 12 lt 45]
            Decagon:  repeat 10[fd 8 rt 36]
            Star:     repeat 5[fd 20 rt 144]

You should spend some time experimenting with circles and repeats. At least try each of the samples above. Try to figure out different ways that you can control the size of circles (there are two numbers which work together to control the size of a circle).

ASSIGNMENT: You will create the picture shown to the right in LOGO. The difficulty has to do with positioning the circles correctly and sizing them correctly.

Illustration Credit