 | Olaus Henrici - Congruences (Geometry) - 1879 - 228 pages
...right, or obtuse; and the triangle is called acute-angled, right-angled, or obtuse-angled accordingly. In a right-angled triangle the side opposite the right angle is called the Hypothennse. parallels. If that axiom be not the true one, we ought to have made in § 113 the other... | |
 | Nautical astronomy - 1880 - 880 pages
...triangle, and •ли acute-anglta triangle. XV. A RIGHT-ANGLED TRIANGLE line one of its angles right; the side opposite the right angle is called the hypotenuse ; and the other two sides are called legs ; that which stands upright is called the perpendicular, ¡ind the other the base ; thus BC is... | |
 | Simon Newcomb - Geometry - 1881 - 418 pages
...which has a right angle. Def. An obtuse-angled triangle is one which has an obtuse angle. 87. Def. In a rightangled triangle the side opposite the right angle is called the hypothenuse. Eight-angled 88. Def. When one ™*°&*side of a triangle has to be distinguished from... | |
 | George Albert Wentworth - Arithmetic - 1886 - 392 pages
...the vertex of the triangle. 388. A right triangle (Fig. 30) is a triangle which has a right angle. The side opposite the right angle is called the hypotenuse, and the other two sides are called the legs. 389. The altitude of a triangle is the perpendicular let fall from a vertex to the opposite side, as... | |
 | George Albert Wentworth - Arithmetic - 1888 - 378 pages
...the vertex of the triangle. 388. A right triangle (Fig. 30) is a triangle which has a right angle. The side opposite the right angle is called the hypotenuse, and the other two sides are called the legs. 389. The altitude of a triangle is the perpendicular let fall from a vertex to the opposite side, as... | |
 | George Albert Wentworth - Geometry - 1888 - 264 pages
...angles are acute angles; an equiangular triangle, when its three angles are equal. 131. In a right triangle, the side opposite the right angle is called the hypotenuse, and the other two sides the legs, of the triangle. 132. The side on which a triangle is supposed to stand is called the base... | |
 | George Anthony Hill - Geometry - 1888 - 200 pages
...acute. Obtuse triangles, having one obtuse angle. Bight triangles, having one right angle. In a right triangle the side opposite the right angle is called the hypotenuse, and the other sides are called the legs. ACUTE. OBTUSE. KICHT. 6. Draw, freehand, two acute triangles, two obtuse... | |
 | George Anthony Hill - Geometry - 1888 - 202 pages
...acute. Obtuse triangles, having one obtuse angle. Right triangles, having one right angle. In a right triangle the side opposite the right angle is called the hypotenuse, and the other sides are called the legs. ACUTE. OBTUSE. EIGHT. 6. Draw, freehand, two acute triangles, two obtuse... | |
 | Nathan Fellowes Dupuis - History - 1889 - 370 pages
...the projections of the remaining sides, taken in cyclic order, upon the line of that side. Def. — In a right-angled triangle the side opposite the right angle is called the hypothenuse, as distinguished from the remaining two sides. 169°. Theorem. — In any right-angled... | |
 | Edward Albert Bowser - Geometry - 1890 - 418 pages
...triangle is one which has three unequal sides. 90. A right-angled triangle is one which has a right angle. The side opposite the right angle is called the hypotenuse, and the other two sides the legs. 91. An acute-angled, triangle' is one which has three acute angles. It will be shown hereafter... | |
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In a right-angled triangle, the side opposite the right angle is called the Hypotenuse ; and the other two sides are called the Legs, and sometimes the Base and Perpendicular. 
