 | John Keill - 1723 - 444 pagine
...Angles of all the Triangles are equal to the inward Angles of the Fii gure. Therefore all the inward Angles of the Figure are equal to twice as many Right Angles as there ar( Triangles, that is, twice as many Right Angles, taking away four, as the Figure has Sides.... | |
 | Euclid, John Keill - 1733 - 444 pagine
...Angles of all the Triangles are equal to the inward Angles of the Figure. Therefore all the inward Angles of the Figure are equal to twice as many Right Angles as there are Triangles, that is, twice as many Right Angles, taking nuayfour, as the, Figure has Sides.... | |
 | Robert Simson - 1762 - 488 pagine
...*,'5-1. ABD is equal b to two right angles; therefore all the interior together with all the exterior angles of the figure, are equal to twice as many right angles as there are fides of the figure, that Is, by the foregoing Corollary, they are equal to all the interior... | |
 | John Keill - 1772 - 462 pagine
...Angles ef ail the Triangles are equal to the inward Angles of the Figure. Therefore all the imvard Angles of the Figure are equal to twice as many Right Angles as there are Triangles, thai is, twice as many Right Angles, taking away four, as the Figurt hath Sides.... | |
 | Thomas Malton - 1774 - 484 pagine
...fubtended by the Sides. ie equal to four Right Angles. And, all the internal Angles of any Right-lined Figure are equal to twice as many Right Angles as the Figure has Sides, wanting four, (Th. i. i0. i.) confequently, the external Angles being equal to thofe four (Th. 2. of the fame) are... | |
 | Robert Simson - 1775 - 534 pagine
...i. ABD, is equal b to two right angles; therefore all the interior, together with all the exterior angles of the figure, are equal to twice as many right angles as there are fides of the figure; that is, by the foregoing corollary, they are equal to all the interior... | |
 | Robert Simson - 1781 - 534 pagine
...13. i. ABD is equal b to two right angles ; therefore all the interior together with all the exterior angles of the figure, are equal to twice as many right angles as there are fides of the figure, that is, by the — foregoing Corollary, they are equal -D J> to... | |
 | Euclid - 1781 - 552 pagine
...exterior ADD, is equal b to two right angles; therefore all the interior, together with all the exterior angles of the figure, are equal to twice as many right angles as there are fides of the figure; that ________ bI], I. u 19. I. b 4-1. COR. 2. All the exterior angles... | |
 | John Keill - 1782 - 476 pagine
...Angles of all the Triangles are equal to the inward Angles of the Figure. Therefore all the inward Angles of the Figure are equal to twice as many Right Angles as there are Triangles, that is, twice as many Right Angles, taking away four, as the Figure bath Sides.... | |
 | John McGregor (teacher of mathematics.) - 1792 - 532 pagine
...ft, I. 32. Euclid. All the anterior angles of any reoilineal figure, together with four right angles, are equal to twice as many right angles as the figure has fides. Hence the following rule. RULE. From double the number of fides fubtraft 4, and the remainder... | |
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angles. Therefore, twice as many right angles as the figure has sides, are equal to all the angles of the figure, together with four right angles, that is, the angles of the figure are equal to twice as many right angles as the figure has sides, wanting... 
