 | Euclides - 1862 - 172 pages
...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. An oblong, is that which has all its angles right angles, but has not all its sides equal. XXXII.... | |
 | Euclides - 1863 - 122 pages
...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
...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
...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
...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
...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... | |
 | Ellis A. Davidson - 1869 - 136 pages
...board, and the pupil has been called upon to believe that " of four-sided figures, a square is that which has all 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
...all 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... | |
 | Euclid - Geometry - 1872 - 284 pages
...rectilineal figure which is contained by four right lines. 30. A parallelogram, is a quadrilateral figure, whose opposite sides are parallel. 31. A square is a quadrilateral figure, which is equilateral and equiangular. 32. Kectilineal figures which have more than four sides, are called... | |
 | Euclides - 1874 - 120 pages
...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. 81. An oblong is that which has all its angles right angles, but not all its sides equal. 32. A rhombus... | |
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A rhombus is that which has all its sides equal, but its angles are not right angles. 
