 | Francis Wayland - Philosophy - 1861 - 444 pages
...conception of figure which gives us the conception of the species, triangle. So, again, " a right-angled triangle is a triangle one of whose angles is a right angle." Here, again, "triangle" is the genus, and 'one of whose angles is a rig\t angle" is the specific difference,... | |
 | Francis Wayland - Philosophy - 1854 - 436 pages
...conception of figure which gives us the conception of the species, triangle. So, again, " a right-angled triangle is a triangle one of whose angles is a right angle." Here, again, "triangle" is the genus, and "one of whose angles is a right angle" is the specific difference,... | |
 | Euclid, Charles Peter Mason - Geometry - 1872 - 216 pages
...XXVI. A scalene triangle is a triangle no two sides of which are equal. Def. XXVII. A right-angled triangle is a triangle one of whose angles is a right angle. That side of a right-angled triangle which is opposite to the right angle, is called the hypotenuse.... | |
 | Aaron Schuyler - Geometry - 1876 - 384 pages
...T«n«,plp« J ( Tri-equilateral /i Oblique ( Scalene -Obtuse^ ^Isosceles — Bi-equilateral ^_L/ 11. The hypotenuse of a right triangle is the side opposite the right angle. 13. In a bi-equilateral triangle, the side unequal to either of the others is generally regarded as... | |
 | Richard Wormell - 1876 - 268 pages
...equal. 33. An equilateral triangle is a triangle which has all its sides equal. 34. A right-angled triangle is a triangle one of whose angles is a right angle. The side opposite the right angle in a right-angled triangle is termed the hypothenuse. THEOREM VIII. When... | |
 | Alfred Hix Welsh - Geometry - 1883 - 326 pages
...They are mutually equiangular when their angles, taken in the same order, are equal each to each. 10. The Hypotenuse of a right triangle is the side opposite the right angle. 11. The Base of a triangle is the side on which it is made to stand as, A B. 12. The angle opposite... | |
 | Charles Scott Venable - Arithmetic - 1888 - 402 pages
...an obtuse angle. 928. A triangle is a surface bounded by three straight lines. 929. A right-angled triangle is a triangle one of whose angles is a right angle. A is a right-angled triangle. 930. The hypothenuse is the side opposite the right angle ; the side... | |
 | Adonijah Strong Welch - Educational psychology - 1889 - 348 pages
...as follows: A rectangular isosceles is a right angle triangle having two equal sides. A right angle triangle is a triangle one of whose angles is a right angle. A triangle is a plane figure having three sides and three angles. A plane figure is a figure drawn... | |
 | Seth Thayer Stewart - Geometry, Modern - 1891 - 422 pages
...their three angles taken in any order, as the triangle ABC, ACB, BAC,BCA, etc. 113. A right-angled triangle is a triangle one of whose angles is a right angle. ABC is a right-angled triangle. 114. An obtins-angled triangle is a triangle one of whose angles is... | |
 | Charles Ambrose Van Velzer, George Clinton Shutts - Geometry - 1894 - 522 pages
...included between the vertices are called the sides of the triangle. 53. A right angled triangle, or simply a right triangle, is a triangle one of whose angles is a right angle. 54. An acute angled triangle, or simply an acute triangle, is a triangle all of whose angles are acute.... | |
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A right triangle is a triangle, one of whose angles is a right angle. 
