Elements of geometry : containing books I to III (1886)
Smith, J. Hamblin · Toronto : W.J. Gage · leaf 145
ot lie out of AE. Q. E. D. Ex. Three circles touch one another externally, whosecentres are A, B, C. Shew that the difference between ABand AC is half as great as the difference between the diametersof the circles, whose centres arts B and C. r38 EUCLIDS ELEMENTS. pool: TI. Proposi r:u • .. I IT.… … Take 0 the centre of 0 ABCThen P, the centre ol • ABE, lies in OA, HI. 11. T;ik«- ;iiy pt. E in the ceofthe • ADE, andjvis OE.Then •.•from 0, a |>t. within or without the ■ ADS, twolines OA, OE ure diuwn to the o^s of which .I pihi atre /, .-. .! is greater than OE, i 11. 8, (tor and .. /. is a…
Geometry
Internet Archive · University of Toronto Libraries · Public Domain Mark 1.0. Free to use for anything.
![An illustration from Nicolai Copernici Torinensis De reuolutionibus orbium coelestium, libri VI : Habes in hoc opere iam recens nato, & aedito, studiose lector, motus stellarum, tam fixarum, quàm erraticarum, cum ex ueteribus, tum etiam ex recentibus obseruationibus restitutos: & nouis insuper ac admirabilibus hypothesibus ornatos. Habes etiam tabulas expeditissimas, ex quibus eosdem ad quoduis tempus quàm facillime caculare poteris. Igitur eme, lege, fruere. [Line in Greek] (1543)](https://img.insideoutlibrary.com/img/200/ia-nicolaicopernici00cope-238-148.webp)
