 | William E. Bell - 1857 - 250 σελίδες
...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 of ten, a decagon ; one of twelve, a dodecagon ; one of fifteen, a pentedecagon... | |
 | William E. Bell - 1859 - 226 σελίδες
...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, a decagon; one of twelve, a dodecagon ; one of fifteen, a pentedecacjon... | |
 | Benjamin Greenleaf - 1862 - 532 σελίδες
...the figure А В С D E. А в 21. A polygon of three sides is called a TRIANGLE ; one of four sides, a QUADRILATERAL ; one of five, a PENTAGON ; one of...seven, a HEPTAGON ; one of eight, an OCTAGON ; one of nine, a NONAGON ; one of ten, a DECAGON ; one of eleven, an UNDECAGON ; 0110 of twelve, a DODECAGON... | |
 | Benjamin Greenleaf - 1866 - 328 σελίδες
...POLYGON ; as the figure ABODE. AB 21. A polygon of three sides is called a TRIANGLE ; one of four sides, a QUADRILATERAL ; one of five, a PENTAGON ; one of...seven, a HEPTAGON ; one of eight, an OCTAGON ; one of nine, a NONAGON ; one of ten, a DECAGON ; one of eleven, an UNDECAGON ; one of twelve, a DODECAGON... | |
 | William Frothingham Bradbury - 1872 - 124 σελίδες
...sides, or angles. 24. Equal Polygons are those which, being applied to each other, exactly coincide. 25. Of Polygons, the simplest has three sides, and is...five, a pentagon ; one of six, a hexagon ; one of eight, an octagon ; one of ten, a decagon. TRIANGLES. 26. A Scalene Triangle is one which has no two... | |
 | William Frothingham Bradbury - 1872 - 262 σελίδες
...sides, or angles. 24. Equal Polygons are those which, being applied to each other, exactly coincide. 25. Of Polygons, the simplest has three sides, and is...five, a pentagon ; one of six, a hexagon ; one of eight, an octagon ; one of ten, a decagon. TRIANGLES. 26. A Scalene Triangle is one which has no two... | |
 | Samuel Sloan - 1873 - 298 σελίδες
...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...seven, a heptagon ; one of eight, an octagon ; one of nine, a nonagon ; one of ten, a decagon. A trapezium is a quadrilateral which has no two of its sides... | |
 | Benjamin Greenleaf - 1873 - 202 σελίδες
...ABCDE. A polygon of three sides is called a triangle; one of four sides, a quadrilateral; one of five, & pentagon; one of six, a hexagon; one of seven, a heptagon; one of eight, an octagon; one of nine, a nona- AB yon; one often, a decagon; one of eleven, an undecagon; one of twelve, a dodecagon... | |
 | Benjamin Greenleaf - 1874 - 206 σελίδες
...a E. triangle; one of four sides, a quadrilateral; one of five, a pentagon; one of six, a licxagon; one of seven, a heptagon; one of eight, an octagon; one of nine, a nona<j»n; one often, a decagon; one of eleven, an undecagon; one of twelve, a dodecagon; and... | |
 | Benjamin Greenleaf - 1875 - 204 σελίδες
...straight lines; as the figure ABCDE. A polygon of three sides is called a triangle; one of four sides, a quadrilateral; one of five, a pentagon; one of six,...seven, a heptagon; one of eight, an octagon; one of nine, a nona- AB gon; one often, a decagon; one of eleven, an undecagon; one of twelve, a dodecagon;... | |
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A polygon of three sides is called 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, a NONAGON ; one of ten, a DECAGON ; one of eleven,... 
