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 369
CPT:=a right z.We can also deduce III. 32. For let Q be a point close to B, inthe figure of that proposition, and produce BQ to R. Then BQDA isa cyclic quadrilateral, and fl /. zBAD = twort. z«-BQD [IIL 22. = zDQR. APPENDIX. BOOK III. xxv Now let Q become indefinitely close to B, then BQR… … Let the chords AB and CD intersect at E ; join AD.The z AEG = the z« ADE, DAE, [I. 32. that is, =the z standing on the arcs AC, BD,that is, =the z at the circumference standing on the sum of the arcs AC, BD,that is, =the z at the centre standing on half the sum of the arcsAC, BD, [III. 20.…
Euclid's Elements · Geometry · Mathematics, Greek
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