| Proclus (Diadochus.), Marinus (of Naples.) - 1788
...and material imperfection, DEFINITION XXX. Of Quadrilateral Figures, a QUADRANGLE or SQUARE is that **which has all its Sides equal, and all its Angles Right Angles.** DEFINITION XXXI. i An OBLONC is that which has all its Angles right Angles, but has not all its Skies... | |
| John Playfair - 1806 - 311 sider
...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, Robert Simson - 1806 - 518 sider
...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. Aii oblong is that which has all its angles right angles, but has not all its sides equal. XXXII.... | |
| 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 - 1816 - 528 sider
...angled triangle is that. which has three acute angles, XXX. T 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.... | |
| John Playfair - 1819 - 317 sider
...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... | |
| Euclid - 1822 - 179 sider
...lines. 30. A parallelogram is a 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... | |
| George Crabb - 1823
...of four sides. The principal of these figures are as follow : namely — The square, ie a foursided **figure, which has all its sides equal, and all its angles right angles,** as ABCD, fig. 13. — An oblong square, a figure having all its angles right angles, but not all its... | |
| 1825
...essential mathematical figures, The mother draws quadilateral figures of four equal sides. A four-sided **figure which has all its sides equal, and all its angles right angles,** is called a square. Try whether the square I have drawn is correct. She makes three squares of equal,... | |
| Peter Nicholson - 1825 - 372 sider
...acute-angled triangle ¡s that which has three acute anglesSO. 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 has not all its sides equal. 32.... | |
| |