 | John Hamilton Moore - Nautical astronomy - 1807 - 676 pages
...their parts, which extended infinitely on the fame plane would never meet, as the lines АН, ЬС. V. A plane angle is the inclination or meeting of two right lines in one point ; the peint where they meet is called the angular point, and the lines AB and AC are called fides or legs;... | |
 | John Hamilton Moore - Nautical astronomy - 1810 - 662 pages
...parts, which extended infinitely on A ~~S the same plane would never meet, as the lines AB, BC. » С V. A plane angle is the inclination or meeting of...angular point, and the lines AB and AC are called sides or legs ; it is generally expressed by three letters: the middle one always denotes the angular... | |
 | Joseph Guy - Astronomy - 1832 - 412 pages
...and a quadrant 90 degrees. An Angle is the meeting of two lines in a point, as A (plate 1, fig. 2.) The point where they meet is called the angular point, and the lines AB and AC, are called sides or legs. A Right Angle is that which is made by one line perpendicular to another, or, when the... | |
 | Joseph Guy - Astronomy - 1845 - 370 pages
...and a quadrant 90 degrees. An Angle is the meeting of "two lines in a point, as A (plate 1, fig. 2.) The point where they meet is called the angular point, and the line* AB and AC, are called sides or legs. A Right Angle is that which is made by one line perpendicular... | |
 | John William Norie - Nautical astronomy - 1852 - 844 pages
...and their included arch, as A c B. XVII. An ANGLE is the inclination or opening of two lines meeting in one point : the point where they meet is called the ANGULAR POINT, as A ; and the lines that include it, the SIDES or LEGS, as AB, or AC. XVIII. An Angle is sometimes... | |
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... are supposed to be divided into 360 equal parts, called degrees (marked ° ;) each degree into 60 minutes (marked ' ;) each minute into 60 seconds (marked ".) Hence a semicircle contains 180 degrees, and a quadrant 90 degrees. An Angle is the meeting... 