| Charles Davies - Geometry - 1886 - 334 pages
...twice as many right angles as the polygon has sidesBut the sum of all the interior angles together **with four right angles, is equal to twice as many right angles as the** polygon has sides (Th- xxi) : that is, equal to the sum of all the inward and outward angles taken... | |
| Adrien Marie Legendre - Geometry - 1852 - 436 pages
...right angles as the figure has sides, less four right angles (P. 26). Hence, the interior angles plus **four right angles, is equal to twice as many right angles as the** polygon has sides, and consequently, equal to the sum of the interior angles plus the exterior angles.... | |
| Euclides - 1852 - 148 pages
...1. All the interior angles of any rectilinear figure, BOOK I. together with four right angles, are **equal to twice as many right angles as the figure has sides.** For any rectilinear figure ABODE can be divided into as many triangles as the figure has sides, by... | |
| Euclides - 1852 - 44 pages
...base. COB. 3. All the interior angles of any rectilineal figure, together with four right angles, are **equal to twice as many right angles as the figure has sides.** COB. 4. All the exterior angles of any rectilineal figure are together equal to four right angles.... | |
| Euclid - Geometry - 1853 - 176 pages
...If a figure be rectilinear. Idem • . CONSEQUENCES. The sum of all the internal {angles, together **with four right angles, is equal to twice as many right angles as the figure has sides.** {All its external angles are together equal to four right angles. L. Relative to Circles generally.... | |
| Euclides - Geometry - 1853 - 334 pages
...similar. For if there be two regular polygons of the same number of sides, all the angles of each together **with four right angles is equal to twice as many right angles as the** polygon has sides ; and things that are equal to the same thing are equal to one another (Ax. i) :... | |
| Euclides - 1853 - 146 pages
...with four right angles. Therefore all the angles of the figure, together with four right angles, are **equal to twice as many right angles as the figure has sides.** COK. 2. — All the exterior angles of any rectilineal figure are together equal to four right angles.... | |
| Royal Military Academy, Woolwich - Mathematics - 1853
...with four right angles. Therefore all the angles of the figure, together with four right angles, are **equal to twice as many right angles as the figure has sides.** COR. 2. All the exterior angles of any rectilineal figure are together equal to four right angles.... | |
| Euclides - Geometry - 1853 - 176 pages
...with four right angles. Therefore all the angles of the figure, together with four right angles, are **equal to twice as many right angles as the figure has sides.** Сод. 2. All the exterior angles of any rectilineal figure are together equal to four right ,ingles.... | |
| Horatio Nelson Robinson - Conic sections - 1854 - 350 pages
...right angles. SCHOLIUM. In any figure bounded by right lines and angles, the sum of all the interior **angles is equal to twice as many right angles as the figure has sides,** less four right angles. Let ABCDE be any figure; then the sum of all its inward angles, A-\B-\-C-\-D-\-E,... | |
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