| Henry Sinclair Hall - 1908
...a line drawn through the vertex parallel to the base. -ve* f1 — 44 GEOMETRY. COROLLARY 1. ^M <Ae **interior angles of any rectilineal figure, together...twice as many right angles as the figure has sides.** Let ABCDE be a rectilineal figure of & sides. It is required to prove that all the interior angles... | |
| Euclid - Mathematics, Greek - 1908
...course be arranged so as not to assume the proposition that the interior angles of a convex polygon **together with four right angles are equal to twice as many right angles as the figure has sides.** Let there be any convex polyhedral angle with V as vertex, and let it be cut by any plane meeting its... | |
| Walter Percy Workman - Geometry - 1908
...angles ; and in any convex polygon the sum of the interior angles, together with four right angles, is **equal to twice as many right angles as the figure has sides** (Euc. I. 32, Cor.) 110 Congruence. CI — If two triangles have two sides and the included angle in... | |
| Euclid - Mathematics, Greek - 1908
...somewhat simpler than, Simson's. 1. The sum of the interior angles of a convex rectilineal figure is **equal to twice as many right angles as the figure has sides,** less four. For let one angular point A be joined to all the other angular points with which it is not... | |
| Geometry, Plane - 1911 - 178 pages
...whose altitude is 3 inches. SEPTEMBER, 1909 1. The sum of all the interior angles of any polygon is **equal to twice as many right angles as the figure has sides,** less four right angles. 2. The angle between two chords which intersect within a circle is measured... | |
| Alfred Hubert Haines, A. F. Hood Daniel - Building - 1915 - 339 pages
...fulfilled :— 1. All the interior deduced or observed angles together with four right angles must be **equal to twice as many right angles as the figure has sides.** 2. The northings must equal the southings. 3. The eastings must equal the westings. In ordinary traverse... | |
| David Wells Payne - Founding - 1917 - 676 pages
...to corresponding angles are proportional. (6) In any polygon, the sum of all the interior angles is **equal to twice as many right angles as the figure has sides,** less four right angles. (7) In any polygon the sum of all the exterior angles is equal to four right... | |
| Hippolyte Taine - Psychology - 1998 - 588 pages
...together equal to four right angles ; hence it follows that the polygon contains a number of angles which, **together with four right angles, are equal to twice as many right angles as** there are sides. — Here the explanatory intermediate is a character comprised in all the elements... | |
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