 BOC, and AOC. 2. Definitions. Two angles are equal when one can be superposed upon the other, so that the vertices shall coincide and the sides of the first shall fall along the sides of the second. Two angles are added by placing them in the same plane...  Trigonometry - Page 3by Arthur Graham Hall, Fred Goodrich Frink - 1909 - 239 pagesFull view - About this book
 | William Chauvenet, William Elwood Byerly - Geometry - 1887 - 331 pages
...that the vertices shall coincide and the sides of the first shall fall along the sides of the second. Two angles are added by placing them in the same plane with their vertices together and a side in common, care being taken that neither of the angles is superposed... | |
 | William Chauvenet, William Elwood Byerly - Geometry - 1887 - 336 pages
...that the vertices shall coincide and the sides of the first shall fall along the sides of the second. Two angles are added by placing them in the same plane with their vertices together and a side in common, care being taken that neither of the angles is superposed... | |
 | William Chauvenet - 1893 - 340 pages
...that the vertices shall coincide and the sides of the first shall fall along the sides of the second. Two angles are added by placing them in the same plane with their vertices together- and a side in common, care being taken that neither of the angles is superposed... | |
 | William Chauvenet - 1905 - 336 pages
...that the vertices shall coincide and the sides of the first shall fall along the sides of the second. Two angles are added by placing them in the same plane with their vertices together and a side in common, care being taken that neither of the angles is superposed... | |
 | Arthur Graham Hall, Fred Goodrich Frink - Plane trigonometry - 1909 - 272 pages
...Just as with line segments, reversing the direction multiplies the angle by - 1 ; thus BOA = -AOB. Two angles are added by placing them in the same plane...direction. The sum is the angle from the initial side of _the first to the terminal side of the second. Subtraction is performed by reversing the subtrahend... | |
 | Arthur Graham Hall, Fred Goodrich Frink - Trigonometry - 1910 - 204 pages
...as with line segments, reversing the direction multiplies the angle by — 1 ; thus BOA = —A OB. Two angles are added by placing them in the same plane...by reversing the subtrahend and adding. In Fig. 2, AOB + BO C=AOC, AOC-BOC=AOB. FIQ 2. EXERCISE I Solve the following problems graphically : 1. On a train... | |
 | Alfred Monroe Kenyon, Louis Ingold - Trigonometry - 1913 - 300 pages
...side of the second in the terminal side of the first FIG. 47 and make their vertices coincide, then the angle from the initial side of the first to the terminal side of the second is their sum. To subtract an angle a from an angle ft, place the terminal side of a on the terminal... | |
 | Claude Irwin Palmer, Charles Wilbur Leigh - Plane trigonometry - 1914 - 308 pages
...terminal side lies on the line between two quadrants. 4. Graphical addition and subtraction of angles. — Two angles are added by placing them in the same plane with their vertices together and the initial side of the second on the terminal side of the first. The sum... | |
 | Claude Irwin Palmer, Charles Wilbur Leigh - Logarithms - 1916 - 348 pages
...terminal side lies on the line between two quadrants. 4. Graphical addition and subtraction of angles. — Two angles are added by placing them in the same plane with their vertices together and the initial side of the second on the terminal side of the first. The sum... | |
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