 | William Dodds - 1883 - 198 Seiten
...kinds — the Square, Rectangle, Rhombus, and Rhomboid. THE SQUARE. 14. A Square is a parallelogram which has all its sides equal, and all its angles right angles. 15. To find the area of a square wlien the side is given in one denomination only. RULE. Multiply the... | |
 | Euclid, Isaac Todhunter - 1883 - 428 Seiten
...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 : 33. A... | |
 | Euclides - 1884 - 182 Seiten
...name the sides and base. 13. KINDS OF QUADRILATERALS. 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 rhombus... | |
 | Euclides - 1884 - 214 Seiten
...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. Of four-sided figures, an oblong is that which has all its angles right angles, but has not all... | |
 | John Veitch - 1885 - 572 Seiten
...four-sided figure, for this does not distinguish it from an oblong or a rhombus ; but of a four-sided figure which has all its sides equal, and all its angles right angles. (a) The representative function of the Concept was indicated in the doctrine of i)»o'flfo-is, or Snppositio,... | |
 | John Veitch - 1885 - 598 Seiten
...proposition, the subject may be put for the predicate or the predicate for the subject. A square is that which has all its sides equal, and all its angles right angles. This as a definition is convertible. Genus (ytvos) is that which is attributed essentially to several... | |
 | Edward Mann Langley, W. Seys Phillips - 1890 - 538 Seiten
...triangle equivalent to the given rectilineal figure, and then use I. 42. DER— A square is a four_sided figure which has all its sides equal and all its angles right angles (ie which is equilateral and rectangular). PROPOSITION 46. PROBLEM. To describe a square on a given... | |
 | John H. Macke - 1891 - 244 Seiten
...ogram whose angles are all right angles ; as the figure AB С D. A 25. A SQUARE is a parallelogram H which has all its sides equal, and all its angles right angles; as figure EFGH. 26. A RHOMBUS is a parallelogram whose sides are all equal in length, but its angles... | |
 | Euclid - 1892 - 460 Seiten
...rectangle is a parallelogram which has one of its angles a right angle. 28. A square is a four.sided figure which has all its sides equal and all its angles right angles. [It may easily be shewn that if a quadrilateral lias all its sides equal and one angle a right angle,... | |
 | Frank Castle - 1899 - 424 Seiten
...A rectangle is a parallelogram having each of its angles a right angle A square is a parallelogram which has all its sides equal and all its angles right angles. A rhombus is a parallelogram having all its sides equal, but its angles are not right angles. A trapezium... | |
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A rhombus is that which has all its sides equal, but its angles are not right angles. 
