| 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... | |
| 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... | |
| 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... | |
| 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... | |
| 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... | |
| 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... | |
| 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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