 | William Dodds - 1883 - 202 pages
...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... | |
 | Euclides - 1884 - 214 pages
...angle. XXIX. Of three-sided figures, 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. Of four-sided figures, an oblong is that which has all its angles right angles, but has not all its... | |
 | Euclides - 1884 - 182 pages
...and AC are equal, 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... | |
 | Colin Arrott R. Browning - 1884 - 274 pages
...corner. diagonal 2 Area of a square = ~ . Diagonal of a square = V2 area. (7) An Oblong, or Rectangle, is that which has all its angles right angles, but has not all its sides equal. Area of rectangle = length x breadth, and . • . the breadth length' (8) A Rhombus has all its sides... | |
 | Stephen Thomas Hawtrey - 1884 - 186 pages
...Of four-sided figures the most important is a square, which Euclid thus defines : Definition 30.—A square is that which has all its sides equal and all its angles right angles. The remaining definitions of four-sided figures are not essential for our present purpose; we will... | |
 | Stewart W. and co - 1884 - 272 pages
...triangle has an obtuse angle. XXIX. An acute-angled triangle has three acnte angles. XXX. A square has all its sides equal, and all its angles right angles. XXXI. An oblong has all its angles right angles, but not all its sides equal. XXXII. A rhombus has its sides equal,... | |
 | John Veitch - Logic - 1885 - 598 pages
...Hence, in the 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... | |
 | John Veitch - Logic - 1885 - 572 pages
...four-sided fgure, 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 fa6Seais, or Suppositio,... | |
 | Edward Mann Langley, W. Seys Phillips - 1890 - 538 pages
...obtuse angle. 29. An 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 has not all its sides equai. 32. A... | |
 | John H. Macke - Carpet laying - 1891 - 244 pages
...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... | |
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An oblong is that which has all its angles right angles, but has not all its sides equal. 
