| International Correspondence Schools - Coal mines and mining - 1900 - 732 pages
...is the perimeter. FIG. aa. 698. Polygons are classified according to the number of their sides : One of three sides is called a triangle ; one of four...heptagon ; one of eight sides, an octagon ; one of ten sides, a decagon ; one of twelve sides, a dodecagon, etc. 699. Equllateral polygons arc those in... | |
| Thomas Franklin Holgate - Geometry - 1901 - 462 pages
...it will be understood that any figure under discussion is convex. A polygon of five sides is called a pentagon ; one of six sides, a hexagon ; one of...heptagon ; one of eight sides, an octagon ; one of ten sides, a decagon ; one of twelve sides, a dodecagon. 337. POSTULATE 8. A circle may be divided... | |
| Arthur Schultze, Frank Louis Sevenoak - Geometry - 1901 - 394 pages
...an adjacent one. A diagonal is a straight line joining the vertices of two non-adjacent angles. 61. A polygon of three sides is called a triangle; one of four sides, a quadrilateral. TRIANGLES 62. A triangle having three unequal sides is a scalene triangle. An isosceles triangle has... | |
| Arthur Schultze, Frank Louis Sevenoak - Geometry - 1902 - 394 pages
...an adjacent one. A diagonal is a straight line joining the vertices of two non-adjacent angles. 61. A polygon of three sides is called a triangle; one of four sides, a quadrilateral. TRIANGLES 62. A triangle having three unequal sides is a scalene triangle. An isosceles triangle has... | |
| Arthur Schultze, Frank Louis Sevenoak - Geometry - 1901 - 396 pages
...an adjacent one. A diagonal is a straight line joining the vertices of two non.adjacent angles. 61. A polygon of three sides is called a triangle; one of four sides, a quadrilateral. TRIANGLES 62. A triangle having three unequal sides is a scalene triangle. An isosceles triangle has... | |
| Arthur Schultze - 1901 - 260 pages
...an adjacent one. A diagonal is a straight line joining the vertices of two non.adjacent angles. 61. A polygon of three sides is called a triangle; one of four sides, a quadrilateral. TRIANGLES 62. A triangle having three unequal sides is a scalene triangle. An isosceles triangle has... | |
| International Correspondence Schools - Electric lighting - 1901 - 630 pages
...polygon is one in which all the sides and all the angles are equal. 64. A polygon of five sides is called a pentagon ; one of six sides, a hexagon ; one of seven sides, a heptagon, Pentagon. Hexagon. Heptagon. Octagon. Decagon. Dodecagon. Fio. 33. etc. Regular polygons having from... | |
| Engineering - 1902 - 514 pages
...polygon is one in which all the sides and all the angles are equal. 64. A polygon of five sides is called a pentagon ; one of six sides, a hexagon ; one of seven sides, a heptagon, Pentagon. Hexagon. Heptagon. Octagon. Decagon. Dodecagon. FIG. 33. etc. Regular polygons having from... | |
| International Correspondence Schools - Arithmetic - 1902 - 794 pages
...polygon is one in which all the sides and all the angles are equal. 64. A polygon of five sides is called a pentagon ; one of six sides, a hexagon ; one of seven sides, a heptagon, Pentagon. Hexagon. Heptagon. Octagon. Decagon. Dodecagon. FIG. S3. etc. Regular polygons having from... | |
| Philip Devereux Johnston - Mechanical drawing - 1903 - 220 pages
...angles are equal. 46 Polygons are named from the number of their sides. Л polygon of three sides is a Triangle, one of four sides a Quadrilateral, one of five sides a Pentagon, one of six sides a Нел-agon, one of seven sides a Heptagon, one of eight sides an Octagon, one of nine sides a Nonagon,... | |
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