| Euclides - 1863
...an obtuse ./f xxrx. An acute-angled triangle is that which has three acute ./\ angles. ^-—t XXX. **Of four-sided figures, a square is that which has...oblong is that which has all its angles right angles,** I but has not all its sides equal. ' L- 1 A rhombus is that which has all its sides equal, but its... | |
| Robert Potts - 1864
...triangle is that which has three acute angles. XXX. Of quadrilateral or four-sided figures, a square **has all its sides equal and all its angles right angles....but has not all its sides equal. XXXII. A rhombus** has all its sides equal, but its angles are not right angles. XXXIII. A rhomboid has its opposite sides... | |
| Robert Potts - 1864
...triangle is that which has three acute angles. XXX. Of quadrilateral or four-sided figures, a square **has all its sides equal and all its angles right angles....but has not all its sides equal. XXXII. A rhombus** has all its sides equal, but its angles are not right angles. XXXIII. A rhomboid has its opposite sides... | |
| Alexander Kennedy Isbister - 1865
...has an obtuse angle. XXIX. An acute-angled triangle, is that which has three acute angles. B3 XXX. **Of four-sided figures, a square is that which has...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
...that which has an obtuse angle. 29. An acute-angled triangle is that which has three acute angles. 30. **Of four-sided figures, a square is that which has...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 - 1867 - 400 sider
...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... | |
| Euclid, Isaac Todhunter - 1867 - 400 sider
...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... | |
| Robert Potts - 1868 - 410 sider
...triangle is that which has three acute angles. XXX. Of quadrilateral or four-sided figures, a square **has all its sides equal and all its angles right angles....angles right angles, but has not all its sides equal.** XXXIL A rhombus has all its sides equal, but its angles are not right angles. XXXIII. A rhomboid has... | |
| 1869
...quadrilateral figure has been sketched on the black board, and the pupil has been called upon to believe that " **of four-sided figures, a square is that which has...its sides equal, and all its angles right angles."** He is told that the diagonals of a square or other rectangle will be equal. He sees they are not so... | |
| 1870 - 329 sider
...that, especially when the rudiments are mastered. Euclid always to speak of a square as " that figure **which has all its sides equal, and all its angles right angles;"** or to avoid the term circle by a round about allusion to it as " a plain figure contained by one line... | |
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