The elements of Euclid for the use of schools and colleges; comprising the first six books and portions of the eleventh and twelfth books; (1903)
Euclid, Todhunter, I. (Isaac), 1820-1884, ed. edt, Simson, Robert, 1687-1768, ed. edt · London; New York, Macmillan · leaf 127
BOOK III. 1. 115 Proposition 1. Problem. To find the centre of a given circle.Let ABO be the given circle :it is required to find its ceidre» … Construction. Draw any chord AB, and bisect it at D; [I. 10.from D draw DC at right angles to AB; [I. n. produce CD to meet the circumference at E, and bisect CEat F. [I. 10. Then F shall be the centre of the circle ABC. For if F be not the centre, if possible, let G be the centre;and join GA, GD,…
Euclid's Elements · Geometry · Mathematics, Greek
Internet Archive · Public Domain Mark 1.0. Free to use for anything.
