Question

# Using clay (or glazing compounds), make a doughnut. Without puncturing or tearing the doughnut, reshape it into a topologically equivalent figure, a cut with a handle.

Solution

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Step 1
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Possible answer: This is the same procedure as mentioned in the book. Start with a doughnut. Carefully distort one side making sure that the hole remains a hole, which will be the handle, until you form a cup a shown:

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