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Figures which consist of more than four sides are called polygons ; if the sides are all equal to each other, they are called regular polygons. They sometimes are named from the number of. their sides, as a five-sided figure is called a pentagon, one...
A Treatise of Practical Surveying: Which is Demonstrated from Its First ... - Página 31
por Robert Gibson - 1806 - 452 páginas
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## The Theory and Practice of Surveying: Containing All the Instructions ...

Robert Gibson - 1832 - 348 páginas
...figure that is not a parallelogram is called a trapezium. Plate 7, fig. 3. 48. Figures which consist of more than four sides are called polygons ; if the...called a pentagon, one of six sides a hexagon, &c. ; bill if their sides are not equal to each other, then they are called irregular polygons, as an irregular...
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## A System of Geometry and Trigonometry: With a Treatise on Surveying; in ...

Abel Flint - 1835 - 334 páginas
...diagonal is a line drawn between two opposite angles ; as the line AB. Fig. 21. 49. Figures which consist of more than four sides' are called polygons; if the sides are equal to each other they are called regular polygons, and are sometimes named from the number of their...
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## The Theory and Practice of Surveying: Containing All the Instructions ...

Robert Gibson, James Ryan - 1839 - 412 páginas
...figure that is not a parallelogram is called a trapezium. Plate 7, lig. 3. 48. Figures which consist of more than four sides are called polygons ; if the sides are all equal to each other, they arc called regular polygons. They sometimes are named from the number of their sides, as a five-sided...
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## A New System of Arithmetic, on the Cancelling Plan: Embracing the Rules of ...

Charles Guilford Burnham - 1841 - 312 páginas
...unequal sides. 37. A diagonal is a line drawn between two opposite angles. 38. Figures which consist of more than four sides are called polygons ; if the sides are equal to each other they are called regular polygons, and are sometimes named from the number of their...
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## A New System of Arithmetic on an Improved Plan

Charles Guilford Burnham - 1850
...unequal sides. 37. A diagonal is a line drawn between two opposite angles. 38. Figures which consist of more than four sides are called polygons ; if the sides are equal to each other, they are called regular polygons, and are sometimes named from the number of their...
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## A NEW SYSTEM OF ARITHMETIC

CHARLES G. BURNHAM - 1857
...unequal sides. 37. A diagonal is a line drawn between two opposite angles. 38. Figures which consist of more than four sides are called polygons ; if the sides are equal to each other, they are called regular polygons, and are sometimes named from the number of their...
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## A New System of Arithmetic, on an Improved Plan, Embracing the Rules of ...

Charles Guilford Burnham - 1857
...unequal sides. 87. A diagonal is a line drawn between two opposite angles. 38. Figures which consist of more than four sides are called polygons ; if the sides are equal to each other, they are called regular polygons, and are sometimes named from the number of their...
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