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let more than two equal straight lines, namely DA, DB, DC, fall on the circle ABC;
I say that the point D is the center of the circle.
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T H E E L E M E N T S |
Book III Proposition 9 | |
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Let ABC be a circle and D a point within it, and from D let more than two equal straight lines, namely DA, DB, DC, fall on the circle ABC; I say that the point D is the center of the circle. |
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