| John Playfair - 1806 - 311 sider
...XXIV. _ Book I. An acute angled triangle is that which has three acute angles, i XXV. Of four sided **figures, a square is that which has all its sides equal, and all its angles right angles.** XXVI. An oblong is that which has all its angles right angles, but has not all its sides equal. XXVII.... | |
| Euclid - 1810 - 518 sider
...obtuse angle. XXIX. An acute-angled triangle, is that which has three acute angles. XXX. Of four sided **figures, a square is that which has all its sides...which has all its angles right angles, but has not all** Us sides equal. j\ j\ A, I 1 A rhombus, is that which has all its sides equal, but its angles are not... | |
| 1811
...to Euclid s definition.' ' The change in def. 30 of Dr. Simson and 26 of the Professor, " an oblong **has all its angles right angles, but has not all its sides equal,"** is but an uncouth expression; at least, it U not preferable to Euclid's def. 31. And in the Doctor's... | |
| Friedrich Christian Accum - 1813 - 396 sider
...equal to one another, and whose angles are right ones, as Fig. 2929 A rectangle is a parallelogram **which has all its angles right angles, but has not all its sides** equalr It is also called an oblong, being longer than broad. See Fig. 30. A rhombus, or lozenge, is... | |
| John Mason Good, Olinthus Gilbert Gregory - 1813
...angled triangle, is that which ha* three arute angles. ¡ ' 50. Of four sided figures, asqnnre isthat **which has all its sides equal, and all its angles right angles.** 51. An oblong, is that which has all its angles right angles, Lu' has not all its sides equal. 32.... | |
| Euclides - 1814
...which has an obtuse angle. XXIX. An acute angled triangle is that which has three acute angles. XXX. **Of four-sided figures, a square is that which has...sides equal, and all its angles right angles. XXXI.** v An oblong, is that which has all its angles right angles, but has not all its sides equal. XXXII.... | |
| John Playfair - 1819 - 317 sider
...obtuse angle. XXIV. An acute angled triangle, is that which has three acute angles. XXV. Of four sided **figures, a square is that which has all its sides equal, and all its angles right angles.** XXVI. An oblong, is that which has all its angles right angles, but has not all its sides equal. i... | |
| John Playfair - 1819 - 333 sider
...which has all its sides equal, and all its angles right angles. y . XXVI. An oblong, is that which hat **all its angles right angles, but has not all its sides equal.** XXVII. A rhombus, k that which ha» all its aides equal, but its angles are not right angles. XXVIH.... | |
| Euclid, Robert Simson - 1821 - 516 sider
...which has an obtuse angle. XXIX. An acute-angled triangle, is that which has three acute angles. XXX. **Of four-sided figures, a square is that which has...its sides equal. XXXII. A rhombus, is that which has** all its sides equal, but its angles are not right angles. XXXIII. „ . A rhomboid, is that which has... | |
| Euclid - 1822 - 179 sider
...quadrilateral figure, Fig. \\. whose opposite sides are parallel. 31. A square is a quadrilateral figure, **which has all its sides equal, and all its angles right angles.** 32. Rectilineal figures, which have more than four sides, are called polygons. Postulates. 1 . Let... | |
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