 | John Dougall - 1810 - 734 σελίδες
...than four sides are distinguished by various names, descriptive of their number of sides : thus, one of five sides is called a pentagon ; one of six sides,...heptagon ; one of eight sides, an octagon; one of nine sides, a nonagon; on? of ten sides, a decagon ; one of twelve sides, a dodecagon ; and so on ;... | |
 | John Dougall - 1815 - 514 σελίδες
...angles, which are always of the same number with the sides ; thus a figure of five sides or angles, is called a pentagon, one of six sides a hexagon,...a heptagon, one of eight sides an octagon, one of nine sides an enneagon, or more commonly by a Latin term, a nonagon, one often sides ttdecagon, one... | |
 | Edward Riddle - 1824 - 572 σελίδες
...quadrilateral. 38. Plane figures of more than four sides receive the general denomination of Polygons. 39. A Polygon of five sides is called a Pentagon ; one...sides a Heptagon ; one of eight sides an Octagon, &c. 40. A Regular Polygon is one which has all its sides equal, and abo all its angles equal. \ 41.... | |
 | Alexander Ingram - 1830 - 458 σελίδες
...figure, as MP. 38. A POLYGON is a figure contained by more than four straight lines, as ABODE. 39. A POLYGON of five sides is called a Pentagon ; one of six sides, a Hexagon ; of seven sides, a Heptagon; of eight sides, an Octagon; of nine sides, a Nonagon ; of ten sides,... | |
 | Alexander Ingram - 1851 - 202 σελίδες
...figure, as MP. 38. A POLYGON is a figure contained by B more than four straight lines, as ABODE. D 39. A POLYGON of five sides is called a Pentagon ; one of six sides, a Hexagon; of seven sides, a Heptagon; of eight sides, an Octagon; of nine sides, a Nonagon; of ten sides, a Decagon,... | |
 | John Davis - 1854 - 172 σελίδες
...a polygon. Thus, one of three sides is a trigon ; one of four sides a tetragon ; one of five sides a pentagon ; one of six sides a hexagon ; one of seven...heptagon ; one of eight sides an octagon ; one of nine sides a nonagon-; one of ten sides a decagon; one of eleven sides an endecagon; one of twelves... | |
 | John Davis (of Providence, R. I.) - 1854 - 170 σελίδες
...generally called polygons ; but they receive particular names, according to their number of sides. Thus a polygon of five sides is called a pentagon ; one of six sides a hexagon ; one of nine sides a nonagon ; one of ten sides a decagon ; one of eleven sides an endecagon ; one of twelve... | |
 | Adrien Marie Legendre - 1863 - 464 σελίδες
...Polygon of three sides is called a triangle / one of four sides, a quadrilateral / one of five sides, a pentagon / one of six sides, a hexagon ; one of...sides, a decagon ; one of twelve sides, a dodecagon, &c. 20. An EQUILATERAL POLYGON, is one whose sides are all equal. An EQUIANGULAR POLYGON, is one whose... | |
 | Evan Wilhelm Evans - 1862 - 116 σελίδες
...the perpendicular is the longest (Theo. XIX). Sit. VII.— OF POLYGONS IN GENERAL. DEFINITIONS. 1. A polygon of five sides is called a PENTAGON; one of six sides, a HEXAGON ; of seven sides, a HEPTAGON ; of eight sides, an OCTAGON ; of ten sides, a DECAGON ; of twelve sides,... | |
 | Charles Davies - 1872 - 464 σελίδες
...Polygon of three sides is called a triangle/ one of four sides, a quadrilateral; one of five sides, a pentagon ; one of six sides, a hexagon; one of seven...sides, a decagon ; one of twelve sides, a dodecagon, &c. 20. An EQUILATERAL POLYGON, is one whose sides are all eq1ial. An EQUIANGULAR POLYGON, is one whose... | |
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A polygon of three sides is called a triangle ; one of four sides, a quadrilateral; one of five sides, a, pentagon; one of six sides, a hexagon ; one of seven sides, a heptagon ; one of eight sides, an octagon ; one of ten sides, a decagon ; one of twelve... 
