| William Templeton (engineer.) - 1848
...OF SUPERFICIES. Square. Rectangle. A s A Rhomboid. -/T7 D cai) ca A SQUARE is a quadrilateral figure **which has all its sides equal, and all its angles right angles.** A RECTANGLE is a four-sided figure which has its angles, right angles, and its opposite sides parallel.... | |
| Euclides - 1849 - 108 sider
...which has an obtuse angle. xxix. An acute angled triangle, is that which has three acute angles. XXX. **Of four-sided figures, a square is that which has...its sides equal. XXXII. A rhombus, is that which has** all its sides equal, but its angles are not right angles. XXXIII. N A rhomboid, is that which has its... | |
| Elias Loomis - 1849 - 226 sider
...quadrilaterals, a square is that which has all its sides equal, and its angles right angles. A rectangle **is that which has all its angles right [ angles, but has not all its sides equal.** A rhombus is that which has all its sides equal, but its angles are not right angles. A parallelogram... | |
| Minard Lafever - 1849 - 119 sider
...equilateral rectangle is one that has all its sides equal. (Fig. 17.) xxv. An oblong rectangle, or an oblong, **has all its angles right angles, but has not all its sides equal.** (Fig. 18.) NOTE. — An oblong has its opposite sides equal. XXVI. A rhombus has its four sides equal,... | |
| Charles Davies - 1850 - 216 sider
...triangle ACB. 14 BOOK I. Definitions. 48. There are several kinds of quadrilaterals. First. The square, **which has all its sides equal, and all its angles right angles.** Second. The rectangle, the opposite sides of which are parallel and its angles right angles. Third.... | |
| CHARLES DAVIS, L.L. D. - 1850
...altitude of BOOK I . Definitions. 48. There are several kinds of quadrilaterals. First. The square, **which has all its sides equal, and all its angles right angles.** Second. The rectangle, the opposite sides of which are parallel and its angles right angles. Third.... | |
| Euclides - 1852
...Fig, 2. is an isosceles acute angled triangle. Fig. 3. is an equilateral acute angled triangle.] XXX. **Of four,sided figures, a square is that which has...sides equal, and all its angles right angles. XXXI.** 1 An oblong is that which has all its angles right angles, but has not all its sides equal. XXXII.... | |
| Euclides - 1853
...which has an obtuse angle. XXIX. An acute-angled triangle is that which has three acute angles. XXX. **Of four-sided figures, a square is that which has...its sides equal. XXXII. A rhombus is that which has** all its sides equal, but its angles are not right angles. XXXIII. A rhomboid is that which has its... | |
| Euclides - 1853
...Obtuse-angled. . Acute-angled. XXIX. An acute^angled triangle is that which has three acute angles. XXX. **Of four-sided figures, a square is that, which has...its sides equal, and all its angles right angles.** Square. Oblong. XXXI. An oblong is that which has all its angles right angles, but has not all its... | |
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