T H E E L E M E N T S |
Book VI Proposition 28 | |
Let GO be made equal to KL, and GP equal to LM; and let the parallelogram OGPQ be completed; therefore it is equal and similar to KM. Therefore GQ is also similar to GB; [VI.21] therefore GQ is about the same diameter with GB. [VI.26] Let GQB be their diameter, and let the figure be described.. |
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