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A rhombus is that which has all its sides equal, but its angles are not right angles.
The First Six Books with Notes - Página 3
por Euclid - 1822 - 179 páginas
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## Mensuration for beginners [With] Answers

William Dodds - 1883
...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...
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## The Elements of Euclid for the Use of Schools and Colleges: Comprising the ...

Euclid, Isaac Todhunter - 1883 - 400 páginas
...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...
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## An introduction to geometry, consisting of Euclid's Elements, book ..., Volumen1

Euclides - 1884
...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...
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## The text of Euclid's geometry, book 1, uniformly and systematically arranged ...

Euclides - 1884
...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...
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## Institutes of Logic

John Veitch - 1885 - 551 páginas
...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,...
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## Institutes of Logic

John Veitch - 1885 - 551 páginas
...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...
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## The Harpur Euclid: An Edition of Euclid's Elements

Edward Mann Langley, W. Seys Phillips - 1890 - 515 páginas
...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...
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## The Carpet-dealer's Guide: A Manual of Practical Information on the Art of ...

John H. Macke - 1891 - 228 páginas
...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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## The Elements of Euclid: Viz. the First Six Books, Together with the Eleventh ...

Euclid, Robert Simson - 1892 - 518 páginas
...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,...
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## Elementary Practical Mathematics

Frank Castle - 1899 - 404 páginas
...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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