| John Gibson - 1881
...side, or has the greater side opposite to it. 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.** 4. Describe a parallelogram that shall be equal to a given triangle BCD, and have one of its angles... | |
| 1882
...triangle are equal to two right angles; and that all the interior angles of any rectilineal n'gure, **together with four right angles, are equal to twice as many right angles as the figure has sides.** 3. If the square described upon one of the sides of a triangle is equal to the squares described upon... | |
| College of preceptors - 1882
...demonstration of which this one is referred to. 5. 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.** 6. The opposite sides and angles of a parallelogram are equal ; and the diameter bisects the parallelogram.... | |
| Education, Higher - 1882
...equal, the triangles must be equal in every respect. 4 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.** 5. Equal triangles upon equal bases in the same straight line and towards the same parts are between... | |
| 1882
...AD : B D. 378 ANSWERS AND EXPLANATIONS. 1. All the internal angles of any convex rectilineal figure, **together with four right angles, are equal to twice as many right angles as the figure has sides** (Euclid I., 32 Cor.) n denoting the number of sides : and T two right angles. (n — 2) T = angles... | |
| Marianne Nops - 1882
...two-thirds of a right angle or 60°. III. All the interior angles of any rectilineal figure added to **four right angles are equal to twice as many right angles as the figure has sides.** Now, any figure can be divided into as many triangles as it has sides by drawing lines from each of... | |
| Education - 1883
...understood abbreviations for irorJs may be used.] 1. 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.** See Corollary to Euclid I. 32. If the figure be equiangular and four interior angles be e ]ual to seven... | |
| Joseph Hughes - Education - 1883
...understood abbreviations for words may be used.] 1. 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.** See Corollary to Euclid I. 32. If the figure be equiangular and four interior angles be equal to seven... | |
| Euclid, Isaac Todhunter - Euclid's Elements - 1883 - 400 pages
...triangle Sic. QBD EUCLID'S ELEMENTS. COROLLARY 1. 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** side?. For any rectilineal figure ABODE can be divided into as many triangles as the figure has sides,... | |
| Mathematical association - 1883
...triangle the two acute angles are complementary. THEOR. 26. All the interior angles of any convex polygon **together with four right angles are equal to twice as many right angles as the** polygon has sides. THEOR. 27. The exterior angles of any convex polygon made by producing the sides... | |
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