 | 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,... | |
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An oblong is that which has all its angles right angles, but has not all its sides equal. 
