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" A rhombus, is that which has all its sides equal, but its angles are not right angles. "
Orr's Circle of the Sciences: The mathematical sciences - Page 46
edited by - 1854
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Elements of Geometry: Containing the First Six Books of Euclid, with a ...

John Playfair - Euclid's Elements - 1806 - 311 pages
...XXVI. An oblong is that which has all its angles right angles, but has not all its sides equal. XXVII. A rhombus is that which has all its sides equal, but its angles are not right angles. XXVIII. A rhomboid is that which has its opposite sides equal to one another, but all its sides are...
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The Elements of Euclid: The Errors, by which Theon, Or Others, Have Long Ago ...

Robert Simson - Trigonometry - 1806 - 518 pages
...XXXI. Aii oblong is that which has all its angles right angles, but has not all its sides equal. XXXII. A rhombus is that which has all its sides equal, but its angles are not right angles. XXXIII. A rhomboid is that which has its opposite sides equal to one another, but .all its sides are...
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Elements of Geometry: Containing the First Six Books of Euclid: With a ...

John Playfair - 1819 - 317 pages
...An oblong, is that which has all its angles right angles, but has not all its sides equal. i XXVII. A rhombus, is that which has all its sides equal, but its angles are not ' right angles. - - _ . XXVIII. A rhomboid, is that which has its opposite sides equal to one another; but all its...
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Elements of Arithmetic, Algebra, and Geometry

George Lees - 1826 - 272 pages
...oblong, is that which has all its angles right angles, but has not all its sides equal. XXVIII — A rhombus, is that which has all its sides equal, but its angles are not right angles. XXIX. — A rhomboid, is that which has its opposite sides equal to one another. XXX.— All other...
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Elements of Geometry: Containing the First Six Books of Euclid, with a ...

John Playfair - Circle-squaring - 1826 - 320 pages
...whieh has all its angles right angles, but has not all Its sides equal. XXVII. A rhombus, is that whieh has all its sides equal, but its angles are not right angles. XXVHI. A rhomboid, is that whieh has its opposite sides equal to one another., but all its sides are...
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The Elements of Euclid: The Errors by which Theon, Or Others, Have Long ...

Robert Simson - Trigonometry - 1827 - 513 pages
...XXXI. An oblong is that which has all its angles right angles, but has not all its sides equal. XXXII. A rhombus, is that which has all its sides equal, but its angles are not right angles. XXXIII. SeeN. A rhomboid, is that which has its opposite sides equal to one another, but all its sides...
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Elements of Geometry: Containing the First Six Books of Euclid, with a ...

John Playfair - Euclid's Elements - 1833 - 333 pages
...XXVI. An oblong, is that which has all its angles right angles, but has not-all its sides equal. xxvir. A rhombus, is that which has all its sides equal, but its angles are nt right angles. XXVIII. A rhomboid, is that which has its opposite sides equal to one another,....
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The Elements of Euclid: Viz. the First Six Books, Together with the Eleventh ...

Euclid - 1835 - 540 pages
...XXXI. An oblong is that which has all its angles right angles, but has not all its sides equal. XXXII. A rhombus is that which has all its sides equal, but its angles are not right angles. XXXIII. A rhomboid is that which has its opposite sides equal to one another, but all its sides are...
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Elements of Geometry: Containing the First Six Books of Euclid, with a ...

John Playfair - Euclid's Elements - 1835 - 316 pages
...rectangle, is that which has all its angles right angles, but has not all its sides equal. 26. A lozenge, or rhombus, is that which has all its sides equal, but its angles are not right angles. 27. A parallelogram, or rhomboid, is that which has its opposite sides parallel, but all its sides...
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The First Six and the Eleventh and Twelfth Books of Euclid's Elements: With ...

Euclid - Geometry - 1837 - 410 pages
...which has all its sides equal, and all its angles right angles. " A rhombus is a four-sided figure which has all its sides equal ; but its angles are not right angles." The latter of these is a correct definition of the figure ; but it does not point the rhombus out as...
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