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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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## The Elements of geometry; or, The first six books, with the eleventh and ...

Euclides - 1855
...each two acute angles, as will be shown in the sequel. XXX. Of four-sided figures, a square is that which has all its sides equal, and all its angles right angles. This definition is redundant. If the general definition annexed to the 34th Prop, of this book be considered,...
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## A Treatise on Arithmetic ...

Noble Heath - 1855 - 455 páginas
...having all its angles right angles, hut only its opposite sides equal. 107. The Pythagorean Tahle, which has all its sides equal, and all its angles right angles, is a square. As the divisions of its sides are also equal, suppose each to be 1 inch long : then, as...
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## The Mechanic's, Machinist's, and Engineer's Practical Book of Reference ...

Charles Haslett - 1855
...solid contents, and is expressed in cubic feet, inches, <iu. mensuration of Superficies. Rectangle. A SQUARE is a quadrilateral figure, which has all its sides equal, and all its angles right angles. A RECTANGLE is a four-sided figure, which has its angles, right angles, and its opposite sides parallel....
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## the mechanics, machinists, and engineer's practical book of reference

charles haslett - 1856
...contents, and is expressed in cubic feet, inches, <fcc, | Mensuration of Superficies. Square. Rectangle. :B A SQUARE is a quadrilateral figure, which has all its sides equal, and all its angles right angles. A RECTANGLE is a four-sided figure, which has its angles, right angles, and its opposite sides parallel....
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## A Treatise on Arithmetic: Through which the Entire Science Can be Most ...

Noble Heath - 1856 - 455 páginas
...having all its angles right angles, hut only its opposite sides equal. 107. The Pythagorean Table, which has all its sides equal, and all its angles right angles, is a square. As the divisions of its sides are also equal, suppose each to he 1 inch long : then, as...
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## Mensuration of lines, areas, surfaces, and volumes

Robert Rawson - 1856
...acute-angled triangle is that which has three acute s\ angles. " 7\ 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. xxxn....
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## Elements of Mental Philosophy: Embracing the Two Departments of ..., Volumen1

Thomas Cogswell Upham - 1857 - 515 páginas
...or brought out by a successive comparison of propositions. We say, for instance, that a square is a figure, which has all its sides equal, and all its angles right angles. In this definition there is not only involved equality of sides, but equality of angles. And it is...
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## The Mechanic's, Machinist's, and Engineer's Practical Book of Reference

Charles Haslett - 1859 - 517 páginas
...solid contents, and is expressed in cubic feet, inches, <fec. mensuration of Superficies. Rectangle. ! A SQUARE is a quadrilateral figure, which has all its sides equal, and all its angles right angles. A RECTANGLE is a four-sided figure, which has its angles, right angles, and its opposite sides parallel....
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## Euclid's Elements of plane geometry [book 1-6] explicitly enunciated, by J ...

Euclides - 1860
...if their sides are respectively equal, they are said to be equilateral. 40. A square is a four-sided figure which has all its sides equal, and all its angles right angles, as S. 41. An oblong or rectangle is a four-sided figure which has all its angles right angles, but...
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## Commercial class book

Alfred Newsom Niblett - 1861
...figure, having its opposite sides parallel and equal. and admits of four varieties, viz: 1. The SQUARE. A square is a quadrilateral figure, which has all its sides equal, and all its angles right angles. N R.-A right angle is formed by two straight lines which are perpen. dicular to each other. An oblong...
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