 The angle opposite the base is known as the vertical angle, and the vertex of this angle is called the vertex of the triangle. The altitude of a triangle is the perpendicular distance from the vertex to the base or the base produced.  Working Drawings - Page 149by Arthur Bradford Babbitt - 1911 - 201 pagesFull view - About this book
 | Nathan Scholfield - 1845 - 894 pages
...ODE. 3. The base of any rectilineal figure is the side on which the figure is supposed to stand. 4. The altitude of a triangle is the perpendicular distance from the vertex of an angle to the opposite side, as a base. Thus AD is the altitude of the triangle BAG. 5. The altitude... | |
 | Charles Davies - 1874 - 464 pages
...are A ° similar, the sectors BAC and DOE are similar, and the segments BFC and DGE are similar. 4. The ALTITUDE OF A TRIANGLE, is the perpendicular distance from the vertex of either angle to the opposite side, or the opposite side produced. The vertex of the angle from which... | |
 | George Albert Wentworth - Geometry - 1877 - 416 pages
...the base is called the Vertical angle, and its vertex is called the Vertex of the triangle. 93. DEF. The Altitude of a triangle is the perpendicular distance...from the vertex to the base, or the base produced. 94. DEF. The Exterior angle of a triangle is the angle included between a side and an adjacent side... | |
 | Stoddard A. Felter, Samuel Ashbel Farrand - Arithmetic - 1877 - 496 pages
...which it seems to rest. Either side may be the base; as, the base w may be AB, or AC, or BC, Fig. 0. 2. The Altitude of a triangle is the perpendicular distance from the vertex to either base ; thus, AC, or CB, or Ce, is the altitude of the triangle ABC, Fig. 6. 3. A Bight-angled... | |
 | William Henry Harrison Phillips - Geometry - 1878 - 236 pages
...C = B : D, and E : C = F : D, E - B : F. B = B : C, C = A2 : B2. BOOK III.] AREAS. DEFINITIONS. 14. The altitude of a triangle is the perpendicular distance from the vertex of either angle to the opposite side, or the opposite side produced. This angle is called the vertical... | |
 | William Frothingham Bradbury - 1882 - 416 pages
...of a triangle (or of any other figure) is the side on which it is AD supposed to stand ; as A C. 46L The altitude of a triangle is the perpendicular distance from the vertex of the angle opposite the base to the base, or to the base produced ; as B D. 462. The area of a triangle... | |
 | George Albert Wentworth - Geometry, Modern - 1881 - 266 pages
...the base is called the Vertical angle, and its vertex is called the Vertex of the triangle. 93. DEF. The Altitude of a triangle is the perpendicular distance...from the vertex to the base, or the base produced. 94. DEF. The Exterior angle of a triangle is the angle included between a side and an adjacent side... | |
 | Franklin Ibach - Geometry - 1882 - 208 pages
...adjacent side produced ; as Z. a. The Vertex of a triangle is the angular point at the vertical angle. The Altitude of a triangle is the perpendicular distance from the vertex to the base, or to the base produced. CD is the altitude of both the triangles ABC and EBC. A Medial Line of a triangle... | |
 | Alfred Hix Welsh - Geometry - 1883 - 326 pages
...product of their numerical measures. Only the numbers representing the lines can be multiplied. 4. The Altitude of a triangle is the perpendicular distance from the vertex of either angle to the opposite side, or to that side produced. 5. The Altitude of a parallelogram... | |
 | George Edward Atwood - Arithmetic - 1894 - 396 pages
...it is supposed to stand. 399. The Vertical Angle of a triangle is the angle opposite the base. 400. The Altitude of a triangle is the perpendicular distance from the vertex of the vertical angle to the base, or to the base prolonged. 401. An Equilateral Triangle is a triangle... | |
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