 | Timothy Walker - 1829 - 156 Seiten
...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... | |
 | John Playfair - 1835 - 336 Seiten
...equal. 20. A scalene triangle is that which has three unequal sides. 21. Aright angled trangle is that which has a right angle. The side opposite the right angle is called the hypotenuse. 22. An obtuse angled triangle, is that which has an obtuse angle. 23. An acute angled triangle, is... | |
 | Adrien Marie Legendre - 1836 - 394 Seiten
...eight, an octagon ; 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...unequal. 16. A right-angled triangle is one which O has a right angle. The side opposite the right angle is called the hypothenuse. Thus, in the triangle... | |
 | Charles Davies - 1839 - 376 Seiten
...of eight, an octagon; that of nine a nonagon ; that of ten, a decagon; that of twelve, a dodecagon. 15. An equilateral triangle is one which has its three...angle. The side opposite the right angle is called the hypothenuse. Thus, 20 INTRODUCTION. 17. Among the quadrilaterals, we distinguish : The square, which... | |
 | Charles Davies - 1839 - 376 Seiten
...decagon; that of twelve, a dodecagon. 15. An equilateral triangle is one which has its three sidea equal ; an isosceles triangle, one which has two of...one which ^ has a right angle. The side opposite the 17. Among the quadrilaterals, we distinguish : The square, which has its sides equal, and its angles... | |
 | Charles Davies - 1835 - 388 Seiten
...of eight, an octagon; that of nine a nonagon ; that of ten, a decagon; that of twelve, a dodecagon. 15. An equilateral triangle is one which has its three...angle. The side opposite the right angle is called the hypothenuse. Thus, iq the triangle ABC, right-angled at A, jjthe side BC is the hypothenuse. 20 1NTRODUCT1ON.... | |
 | Nicholas Tillinghast - 1844 - 110 Seiten
...is one which has two equal sides. 15. When no two sides are equal, the triangle is called scalene. 16. A right-angled triangle is one which has a right angle. The side opposite B the right angle is called the hypotenuse. Thus in the triangle ABC, right angled at A, BC is the... | |
 | Charles Davies - 1846 - 386 Seiten
...of eight, an octagon; that of nine a nonagon; that of ten, a decagon ; that of twelve, a dodecagon. 15. An equilateral triangle is one which has its three...one which ^ has a right angle. The side opposite the 17. Among the quadrilaterals, we distinguish : The square, which has its sides equal, and its angles... | |
 | Charles Davies - 1849 - 372 Seiten
...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 - 1849 - 252 Seiten
...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.... | |
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A right-angled triangle is one which has a right angle. The side opposite the right angle is called the hypothenuse. 
