Circles within Circles

Kathleen Kay

One of the very oldest designs, relying completely on its own shape (the circle) to sub-divide its area, is the ancient T'ai Chi symbol of Yin and Yang. Throughout my teaching years many students have wanted to reproduce the design in enamel. Here I show you how to simply and accurately construct the shapes (rather than drawing a haphazard wiggle and adding a couple of blobs).

a) First draw a vertical line.

b) With the compass point centred on the line, draw the outer circle to size.

c) Using the mark of the compass as your centre guide subdivide the line again, reducing the compass measurement by half to produce two centre points and draw the two circles as shown.

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