| Euclides - 1864 - 262 pages
...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.** XXXII. A rhombus has all its sides equal, but its angles are not right angles. XXXIII. A rhomboid has... | |
| Robert Potts - 1865 - 528 pages
...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.** XXXII. A rhombus has all its sides equal, but its angles are not right angles. xxxm. A rhomboid has... | |
| Euclides - 1865 - 402 pages
...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 - 172 pages
...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... | |
| 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... | |
| Euclid, Isaac Todhunter - Euclid's Elements - 1867 - 424 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... | |
| Robert Potts - 1868 - 434 pages
...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... | |
| Ellis A. Davidson - 1869 - 136 pages
...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... | |
| John Bruce Norton - Education, Higher - 1870 - 350 pages
...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... | |
| Henry Major - Student teachers - 1873 - 588 pages
...tnangle has an ^/ obtuse angle. XXIX. An acute-Angled triangle has three acute angles. XXX. A square **has all its sides equal, and all its angles right angles. XXXI. An oblong** has all its angles right angles, but not all its sides equal. XXXII. A rhombus has its sides equal,... | |
| |