 | Timothy Walker - Geometry - 1829 - 156 pages
...was to be proved. TRIANGLES. 44. DBF. — A triangle is a figure bounded by three straight lines. — An equilateral triangle is one which has its three sides equal. — An isosceles triangle is one which has two sides equal. — A scalene triangle is one which has no two sides equal. — A... | |
 | Adrien Marie Legendre - Geometry - 1830 - 344 pages
...that of four sides, a quadrilateral ; that of five, a pentagon ; that of six, a hexagon ; and so on. 15. An equilateral triangle is one which has its three...triangle, one which has two of its sides equal ; a scalme triangle, one which has its three sides unequal. 16. A right-angled triangle is one which C... | |
 | Adrien Marie Legendre - Geometry - 1836 - 394 pages
...sides, the simplest of all, is called a triangle ; that of four sides, a quadrilateral; that of five, a pentagon; that of six, a hexagon; that of seven, a...; that of nine, a nonagon; that of ten, a decagon ; and that of twelve, a dodecagon. B 15. An equilateral triangle is one which has its three sides equal... | |
 | Adrien Marie Legendre - Geometry - 1837 - 376 pages
...seven, a heptagon; that of eight, an octagon ; that of nine, a nonagon; that of ten, a decagon ; and that of twelve, a dodecagon. 15. An equilateral triangle...unequal. 16. A right-angled triangle is one which C has a right angle. The side opposite the right angle is called the hypothenuse. Thus, in the triangle... | |
 | Charles Davies - Surveying - 1839 - 376 pages
...sides, the simplest of all, is called a triangle; that of four sides, a quadrilateral; that of five, a pentagon ; that of six, a hexagon; that of seven,...An equilateral triangle is one which has its three sidea equal ; an isosceles triangle, one which has two of its sides equal ; a scalene triangle, one... | |
 | Charles Davies - Trigonometry - 1849 - 372 pages
...or polygon, and the lines themselves, taken together, form the contour, or perimeter of the polygon. 15. An equilateral triangle is one which has its three...unequal, 16. A right-angled triangle is one which C has a right angle. The side opposite the right angle is called the hypothenuse. Thus, in the triangle... | |
 | Elias Loomis - Conic sections - 1849 - 252 pages
...rectilineal figure, or polygon, and the lines themselves, taken together, form the perimeter of the polygon. 15. An equilateral triangle is one which has its three sides equal. An isosceles triangle is that,which has only two sides equal. A scalene triangle is one which has three unequal sides. 16.... | |
 | Adrien Marie Legendre - Geometry - 1852 - 436 pages
...sides, the simplest of all, is called a triangle ; that of four sides, a quadrilateral ; that of five, a pentagon ; that of six, a hexagon ; that of seven,...heptagon ; that of eight, an octagon ; that of nine, an nonagon ; that of ten, a decagon ; and that of twelve, a dodecagon. 20. An EQUILATERAL polygon is... | |
 | Charles Davies - Navigation - 1852 - 412 pages
...sides, the simplest of all, is called a triangle; that of four sides, a quadrilateral; that of five, a pentagon ; that of six, a hexagon ; that of seven,...heptagon ; that of eight, an octagon ; that of nine, an nonagon ; that of ten, a decagon ; and that of twelve, a dodecagon. , 20. An EQUILATERAL polygon... | |
 | Charles Davies - Geometry - 1854 - 436 pages
...sides, the simplest of all, is called a triangle; that of four sides, a quadrilateral; that of five, a pentagon ; that of six, a hexagon ; that of seven,...heptagon ; that of eight, an octagon ; that of nine, an nonagon ; that of ten, a decagon ; and that of twelve, a dodecagon. 20. An EQUILATERAL polygon is... | |
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... perimeter of the polygon. 14. The polygon of three sides, the simplest of all, is called a triangle; that of four sides, a quadrilateral; that of... 
