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" A rhombus has all its sides equal, but its angles are not right angles. "
Practical geometry for art students - Page 11
by John Carroll (art master.) - 1881
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A Practical Application of the Principles of Geometry to the Mensuration of ...

Jeremiah Day - Measurement - 1815 - 388 pages
...right parallelogram, has its opposite sides equal, and all its angles right angles ; as AC. (Fig. 1.) A square has all its sides equal, and all its angles right angles ; as AB GH. (Fig. 3.) A rhombus has all its sides equal, and its angles oblique; as ABCD. (Fig. 3.)...
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The Second [-fifth and Sixth] Part of A Course of Mathematics: Adapted to ...

Jeremiah Day - Geometry - 1824 - 440 pages
...right parallelogram, has its opposite sides equal, and all its angles right angles; as AC. (rig 1.) A square has all its sides equal, and all its angles right angles ; as AB GH. (Fig. 3.) A rhombus has all its sides equal, and its angles oblique : as ABCL). (Fig. 3.)...
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Geometry, Plane, Solid, and Spherical, in Six Books: To which is Added, in ...

Pierce Morton - Geometry - 1830 - 584 pages
...three given spherical arcs . . 207 Square, d<-f. (also "Square of a straight line' AB") . . .2 (a) A square has all its sides equal and all its angles right angles car. 16 [(A) Its diagonals are equal and bisect one another at right angles.] (r) The squares of equal...
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The Principles of Plane Trigonometry, Mensuration, Navigation and Surveying

Jeremiah Day - Measurement - 1831 - 520 pages
...right parallelogram, has its opposite sides equal, and all its angles right angles; as AC. (Fig. 1.) A square has all its sides equal, and all its angles right angles ; asABGH. (Fig. 3.) A rhombus has all its sides equal, and its angles oblique ; as ABCD. (Fig. 3.)...
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A Treatise of Plane Trigonometry: To which is Prefixed a Summary View of the ...

Jeremiah Day - Logarithms - 1831 - 418 pages
...right parallelogram, has its opposite sides equal, and all its angles right angles; as AC. (Fig. 1.) A square has all its sides equal, and all its angles right angles ; as ABGH. (Fig. 3.) A rhombus has all its sides equal, and its angles oblique ; as ABCD. (Fig. 3.)...
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Library of Useful Knowledge: Geometry plane, solid, and spherical [by Pierce ...

Mathematics - 1835 - 684 pages
...touching three given spherical arcs . . 207 Square, dcf. (also "Square of a straight Hue AB") . . .2 (a) A square has all its sides equal and all its angles right angles car. 16 [(6) Its diagonals are equal and bisect one another at right angles.] (c) The squares of equal...
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A Course of Mathematics: Containing the Principles of Plane ..., Volumes 1-3

Jeremiah Day - Geometry - 1838 - 416 pages
...right parallelogram, has its opposite sides equal, and all its angles right angles ; as AC. (Fig. 1.) A square has all its sides equal, and all its angles right angles ; as ABGH. (Fig. 3.) A rhombus has all its sides equal, and its angles oblique ; as ABCD. (Fig. 3.)...
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A complete treatise on Practical Land-Surveying, etc

Thomas Holliday - Surveying - 1838 - 404 pages
...described on the base and perpendicular. A figure of four sides is denominated a quadrilateral figure. A square has all its sides equal, and all its angles right angles. See fig. 9, plate I. A rectangle has its opposite sides equal, and its angles right angles. See fig....
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A Course of Mathematics: Containing the Principles of Plane ..., Volumes 1-3

Jeremiah Day - Geometry - 1839 - 434 pages
...right parallelogram, has its opposite sides equal, and all its angles right angles ; as AC. (Fig. 1.) A square has all its sides equal, and all its angles right angles; as ABGH. (Fig. 3.) A rhombus has all its sides equal, and its angles oblique ; as ABCD. (Fig. 3.) A...
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Euclid's Elements of plane geometry [book 1-6] with explanatory appendix ...

Euclides - 1840 - 192 pages
...incautiously charged with surplusage. His learned editors, Simson and Playfair, have made him say that a square has all its sides equal, and all its angles, right angles ; and to this it has been objected by Mr. WALKER (followed by Dr. LARDNER, and others,), that if a...
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