 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...  A Manual of Mechanical Drawing - Page 4by Philip Devereux Johnston - 1903 - 149 pagesFull view - About this book
 | William E. Bell - Bridge building - 1857 - 250 pages
...which is both equilateral and equiangular. 21. The polygon of three sides is called a triangle; that of four sides, a quadrilateral; one of five sides, a pentagon; one of sir, a hexagon; one of seven, a heptagon ; one of eight, an octagon ; one of nine, a nonagon ; one... | |
 | William E. Bell - Bridges - 1859 - 226 pages
...which is both equilateral and equiangular. 21. The polygon of three sides is called a triangle ; that of four sides, a quadrilateral ; one of five sides, a pentagon ; one of six, a hexagon; one of seven, a heptagon; one of eight, an octagon; one of nine, a nonagon; one of ten,... | |
 | Adrien Marie Legendre - Geometry - 1863 - 464 pages
...are classified according to the number of their sides or angles. 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... | |
 | Charles Davies - Geometry - 1872 - 464 pages
...are classified according to the number of their sides or angles. 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... | |
 | Samuel Sloan - 1873 - 298 pages
...rightangle is an obtuse angle. A polygon is a portion of a plane terminated on all sides by lines. A polygon of three sides is a triangle ; one of four sides, a quadrilateral ; one of five, a pentagon ; one of six, a hexagon ; one of seven, a heptagon ; one of eight, an octagon ; one of nine,... | |
 | Adrien Marie Legendre - Geometry - 1874 - 500 pages
...are classified according to the number of their sides or angles. 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... | |
 | Charles Davies - 1874 - 464 pages
...according to the number of their sides or angles. A Polygon of three sides is called a tri>n1gls ; 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... | |
 | Lorenzo Fairbanks - 1875 - 472 pages
...Rectilinear Figure, or Polygon. A Polygon having only three sides is called a Triangle ; one having 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 nine sides, a Nonagon... | |
 | John Reynell Morell - 1875 - 220 pages
...of the figure. A polygon which has only three sides is a triangle. A polygon of four sides is named a quadrilateral ; one of five sides, a pentagon ; one of six sides, a hexagon, &c. A polygon is convex when it is all on the same side of each of the straight lines that... | |
 | William Guy Peck - Conic sections - 1876 - 376 pages
...the number of their sides, or from the number of their angles: 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; and so on. Classification... | |
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