 | Elias Loomis - Conic sections - 1860 - 246 pages
...that of four sides is called a quadrilateral: that of five, a pentagon ; that of six, a hexagon, &c. 15. An equilateral triangle is one which has its three sides equal. / v An isosceles triangle is that which has only two sides equal. A scalene triangle is one which has... | |
 | Emerson Elbridge White - Arithmetic (Commercial), 1861 - 1861 - 348 pages
...straight lines. It also contains, as its name indicates, three angles. A right-angled triangle contains a right angle. The side opposite the right angle is called the hypotenuse. The other two sides are called the base and perpendicular. Perpendicular. Base. It is an established... | |
 | Elias Loomis - Geometry - 1871 - 302 pages
...triangle is that which has only two sides e-}ual. A scalene triangle is one which has three unequal sides. 16. A right-angled triangle is one which has a right...angle. The side opposite the right angle is called the hypothenuse. An obtuse-angled triangle is one which has an obtuse an gle. An acute-angled triangle... | |
 | James Stewart Eaton - 1873 - 358 pages
...a figure bounded by three straight lines. 6. A right-angled triangle, Fig. 3, has one of its angles a right angle. The side opposite the right angle is called the hypothenuse ; the other two sides are the bate and perpendicular. Fig. 3. A IBase. 7. An equilateral... | |
 | David Bain - Geometry - 1879 - 36 pages
...Triangle has all its sides unequal. Fig. 13. Fig. 14. Fig. 15. 16. A Eight-Angled Triangle has one angle a right angle. The side opposite the right angle is called the hypotenuse. 17. An Obtuse- Angled Triangle has one of its angles an obtuse angle. 18. An Acute-Angled Triangle... | |
 | Euclides - 1879 - 146 pages
...equal. 26. A scalene triangle is that which has three unequal sides. 27. A right.angled triangle is that which has a right angle. [The side opposite the right angle is often called the hypotenuse.] 28. An obtuse.angled triangle is that which has an obtuse angle. [It... | |
 | Charles Scott Venable - 1881 - 380 pages
...that which has two sides equal ; and a scalene triangle is one which has three unequal sides. 1 6. A right-angled triangle is one which has a right angle. The side opposite the right angle is called the hypothenuse: thus, ABC is a right-angled triangle, with the right angle at A ; the side, BC, being... | |
 | John Carroll (art master.) - Geometry - 1881 - 100 pages
...triangle has two of its sides equal. Fig. 8. A scalene triangle has all its sides unequal. Fig. 9. A right-angled triangle is one which has a right angle, the side opposite being termed the hypotenuse. Fig. 10. An obtuse-angled triangle is one which lias an obtuse angle.... | |
 | George Bruce Halsted - Geometry - 1885 - 389 pages
...triangle, we mean the three interior angles. „ 119. A Right-angled Triangle has one of its angles a right angle. The side opposite the right angle is called the Hypothenuse. 120. An Obtuse-angled Triangle has one of its angles obtuse. 121. An Acute-angled Triangle... | |
 | George Albert Wentworth - Arithmetic - 1886 - 392 pages
...opposite the base is called 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... | |
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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. 
