An Illustration of the First Type A square and 8 of its roots equal 33 units. The question is, what is the square? Answer: 9. The rule is to add to the number the product of half of the root multiplied by itself, that is 16 to 33, and 49 is obtained, of which the root is 7. Now from this root we subtract one-half of the number of roots, namely 4, which leaves three. This is the root of the square, and the square is 9.
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