 | Charles Hutton - Measurement - 1788 - 728 pages
...41. A pentagon is a polygon of five fides; a hexagon has fix fides ; a heptagon, feven ; an oftagon, eight; a nonagon, nine; a decagon, ten; an undecagon, eleven ; and a dodecagon has twelve fides. 42. A regular polygon has all its fides and all its angles equal. — If they are... | |
 | Samuel Webber - Mathematics - 1808 - 466 pages
...41. A pentagon is a polygon of five sides ; a hexagon has six sides ; a heptagon, seven ; an octagon, eight ; a nonagon, nine ; a decagon, ten ; an undecagon, eleven ; and a dodecagon, twelve. 42. A regular polygon has all its sides and all its angles equal. — If they be not both equal, the... | |
 | Peter Nicholson - 1809 - 426 pages
...angles. SQ. A pentagon is a polygon of five sides, a hexagon hath six aides, a heptagon seven, an octagon eight, a nonagon nine, a decagon ten, an undecagon eleven, and a dodecagon twelve sides. 40. A regular polygon hath all its sides and angles equal ; and if they are not equal, the polygon... | |
 | Charles Hutton - Mathematics - 1811 - 406 pages
...41. A Pentagon is a polygon of five sides; a Hexagon, of six sides ; a Heptagon, seven ; an Octagon, eight ; a Nonagon, nine ^ a Decagon, ten ; an Undecagon, eleven ; and a Dodecagon, twelve sides. 42. A Regular Polygon has all its sides and all its angle* equol. — If they are not both equal,... | |
 | Charles Hutton - Arithmetic - 1818 - 646 pages
...41. A Pentagon is a polygon of five sides : a Hexagon, of six sides ; a Heptagon, seven ; an Octagon, eight ; a Nonagon, nine; a Decagon, ten ; an Undecagon, eleven ; and a Dodecagon, twelve sides. 42. A Regular Polygon has all its sides and all its angles equal. — lf they are not both equal,... | |
 | William Grier - Mechanical engineering - 1832 - 366 pages
...41. A Pentagon is a polygon of five sides ; a Hexagon, of six sides; a Heptagon, seven; an Octagon, eight; a Nonagon, nine ; a Decagon, ten ; an Undecagon, eleven ; and a Dodecagon, twelve sides. 42. A Regular Polygon has all its sides and all its angles equal. — If they are not both equal,... | |
 | Edward Shaw - Architecture - 1832 - 402 pages
...angles. 39. A pentagon is a polygon of five sides, a hexagon has six sides, a heptagon seven, an octagon eight, a nonagon nine, a decagon ten, an undecagon eleven, and a dodecagon twelve sides. 40. A regular polygon has all its sides and angles equal ; and if they are not equal, die polygon... | |
 | Industrial arts - 1835 - 398 pages
...41. A Pentagon is a polygon of five sides ; a Hexagon, of six sides ; a Heptagon, seven ; an Octagon, eight ; a Nonagon, nine ; a Decagon, ten ; an Undecagon, eleven ; and a Dodecagon, twelve sides. 42. A Regular Polygon has all its sides and all its angles equal. If they are not both equal,... | |
 | Edward Shaw - Architecture - 1836 - 438 pages
...angles. 39. A pentagon is a polygon of five sides, a hexagon has six sides, a heptagon seven, an octagon eight, a nonagon nine, a decagon ten, an undecagon eleven, and a dodecagon twelve sides. 40. A regular polygon has all its sides and angles equal ; and if they are not equal, the polygon... | |
 | William Grier - Mechanical engineering - 1836 - 384 pages
...41. A Pentagon is a polygon of five sides ; a Hexagon of six sides; a Heptagon, seven; an Octagon, eight; a Nonagon, nine : a Decagon, ten ; an Undecagon, eleven ; and a Dodecagon, twelve sides. 42. A Regular Polygon has all its sides and all its angles equal. — If they are not both equal,... | |
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Hexagon, of six sides; a Heptagon, seven; an Octagon, eight; a Nonagon, nine ; a Decagon, ten ; an Undecagon, eleven ; and a Dodecagon, twelve sides. 
