 | Proclus (Diadochus.) - 1788 - 350 Seiten
...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 - 320 Seiten
...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.... | |
 | Robert Simson - 1806 - 546 Seiten
...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 - 1813 - 714 Seiten
...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 - 588 Seiten
...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 - 354 Seiten
...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... | |
 | George Crabb - 1823 - 704 Seiten
...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 - 498 Seiten
...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 - 1046 Seiten
...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.... | |
 | George Lees - 1826 - 276 Seiten
...triangle, is that which has three acute angles. Book I. XXVI. — Of four sided figures, a square is that which has all its sides equal, and all its angles right angles. XXVII. — An oblong, is that which has all its angles right angles, but has not all its sides equal.... | |
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A rhombus is that which has all its sides equal, but its angles are not right angles. 
