| Scottish school-book assoc - 1845
...31. An acute angled triangle has all its angles acute. 32. Of four- sided figures, a square is that **which has all its sides equal, and all its angles right angles.** 33. A rectangle is that which has all its angles right angles, but all its sides are not equal. 34.... | |
| Euclid - 1845 - 199 páginas
...acute-angled triangle, is that which has three acute angles. XXX. Of four-sided figures, a square is that **which has all its sides equal, and all its angles right angles.** XXXI. XXXII. A rhombus, is that which has all its sides equal, but its angles are not right angles.... | |
| Euclides - 1846
...acute-angled triangle is that which has three acute angles. Of four-sided figures, xxx. A square is that **which has all its sides equal, and all its angles right angles** : xxxi. An oblong is that which has all its angles right angles, but not all its sides equal : xxxn.... | |
| Charles Davies - 1846 - 240 páginas
...altitude. Thus, AC is the altitude. 9. Name the different kinds of quadrilaterals. First. — The square, **which has all its sides equal, and all its angles right angles.** Second. — The rectangle, which has its angles right angles, and its opposite sides equal and parallel.... | |
| John Playfair - 1846 - 317 páginas
...acute angled triangle is that which has three acute angles. 25. Of four sided figures, a square is that **which has all its sides equal and all its angles right angles.** 26. An oblong is that which has all its angles right angles, but has not all its sides equal. 28. A... | |
| Euclides - 1847
...acute.angled triangle is that which has three acute angles. 29. Of four.sided figures, a square is that **which has all its sides equal, and all its angles right angles.** 30. An oblong is that which has all its angles right angles, but has not all its sides equal. Called... | |
| Stephen Chase - 1847 - 26 páginas
...before any demonstration of the properties of quadrilaterals, the square is defined as "a quadrilateral, **which has all its sides equal, and all its angles right angles** " ; the rectangle, as one " which has its opposite sides equal, and its angles right angles " ; the... | |
| Alpheus Crosby - 1847 - 164 páginas
...before any demonstration of the properties of quadrilaterals, the square is defined as "a quadrilateral, **which has all its sides equal, and all its angles right angles** " ; the rectangle, as one " which has its opposite sides equal, and its angles right angles " ; the... | |
| William Templeton (engineer.) - 1848
...cubic feet, inches, &c. MENSURATION 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
...angled triangle, is that which has three acute angles. XXX. Of four-sided figures, a square is that **which has all its sides equal, and all its angles right angles.** XXXI. An oblong, is that which has all its angles right angles, but has not all its sides equal. XXXII.... | |
| |