 | Thomas Cogswell Upham - Ethics - 1857 - 474 pages
...brought out by a successive comparison of propositions. We say, for instance, that a square is a figure, which has all its sides equal, and all its angles right angles. In this definition there is not only involved equality of sides, but equality of angles. And it is... | |
 | Euclides - 1858 - 248 pages
...angles. Ax. 3. If equals be taken from equals, the remainders are equal. Def. 30. Of four-sided figures a square is that which has all its sides equal, and all its angles rt. angles. B Given the st. line A 15 ; it is required to draw a square on AB. From A draw AC at rt.angles... | |
 | Charles Haslett, Charles William Hackley - Engineering - 1859 - 574 pages
...cubic feet, inches, <fec. mensuration of Superficies. Rectangle. ! 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 - 1860 - 288 pages
...sides are respectively equal, they are said to be equilateral. 40. A square is a four-sided figure which has all its sides equal, and all its angles right angles, as S. 41. An oblong or rectangle is a four-sided figure which has all its angles right angles, but... | |
 | Alfred Newsom Niblett - 1861 - 204 pages
...parallel and equal. and admits of four varieties, viz: 1. The SQUARE. A square is a quadrilateral figure, which has all its sides equal, and all its angles right angles. N R.-A right angle is formed by two straight lines which are perpen. dicular to each other. An oblong... | |
 | Euclides - 1862 - 140 pages
...angle. 29. An acute-angled triangle is that which has three acute angles. 30. Of four-sided figures, a square is that which has all its sides equal, and all its angles right angles. 31. An oblong is that which has all its angles right angles, but not all its sides equal. 32. A rhombus... | |
 | Euclides - 1863 - 122 pages
...acute-angled triangle is that which has three acute ./\ angles. ^-—t 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, I but has not all its sides equal. '... | |
 | Euclides - 1865 - 402 pages
...XXIX. An acute-angled triangle, is that which has three acute angles. B3 XXX. Of four-sided figures, a square is that which has all its sides equal, and all its angles right angles. XXXL An oblong, is that which has all its angles right angles, but has not all its sides equal. XXXIL... | |
 | Edward Clarke Lowe - 1866 - 172 pages
...angle. 29. An acute-angled triangle is that which has three acute angles. 30. Of four-sided figures, a square is that which has all its sides equal, and all its angles right angles. 31. An oblong is that which has all its angles right angles, but not all its sides equal. 32. A rhombus... | |
 | Euclid, Isaac Todhunter - Euclid's Elements - 1867 - 426 pages
...angle : 29. An acute-angled triangle is that which has three acute angles. Of four-sided figures, 30. A square is that which has all its sides equal, and all its angles right angles : 31. An oblong is that which has all its angles right angles, but not all its sides equal : 32. A... | |
| |
A RHOMBUS is that which has all its sides equal, but its angles are not right angles. 
