Volume 2
The elements of Euclid explain'd. In a new, but most easie method, together with the use of every proposition through all parts of the mathematicks / Written in French, by that exccellent [sic] mathematician F. Claud. Francis Milliet de Chales ... And now carefully done into English. And purg'd from a multitude of errors, which had escap'd in the original.
- Euclid
- Date:
- 1685
Licence: Public Domain Mark
Credit: The elements of Euclid explain'd. In a new, but most easie method, together with the use of every proposition through all parts of the mathematicks / Written in French, by that exccellent [sic] mathematician F. Claud. Francis Milliet de Chales ... And now carefully done into English. And purg'd from a multitude of errors, which had escap'd in the original. Source: Wellcome Collection.
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No text description is available for this image
No text description is available for this image
No text description is available for this image![Demonftration. ος : Suppofe the fine AD to fall perpendicularly) Wa. confequence right angles. Or, — , oO ee à we we use B : right angles, which are of e=|7 qual value with the chree angles ADC, ADE,,|} ÉDB. But the obtufe angle EDC, and che: acute angle EDB, are of equal value with che») three angles AD, ADE, and EDB: therefore: |) the angles EDC, and EDB, are of equal value:)) wich two right ones. , monftrated by defcribing a femicircle from the: EDB, and EDC, will require a femicircle for: M right angles, as I have fhown before ; in the 8.. | définition. 1] make one right angle ADC; it is evident the: M other, ADB, will be alfo a right angle. { will be obtufe. Ther |N](https://iiif.wellcomecollection.org/image/b30337069_0002_0044.jp2/full/800%2C/0/default.jpg)