 | John Bradley Harbord - 1883 - 472 стор.
...azimuth passing through the north or south point." Degree (L. gradus, " a step " ; Fr. degrf). — The angle subtended at the centre of a circle by an arc equal to the 360th part of the circumference. A degree is subdivided into 60 minutes, and each minute into 60 seconds.... | |
 | Sir Norman Lockyer - 1883 - 694 стор.
...twisted is 2 it — a. The couple produced by this torsion has for moment Him sin a. 1 A radian is the angle subtended at the centre of a circle by an arc equal in length to ihe radius. It has generally been called in lx>oks on trigonometry hitherto by the ambiguous... | |
 | Woolwich roy. military acad - 1884 - 148 стор.
...of triangles.) [NB — Great importance will be attached to accuracy in results. } . I. Prove that the angle subtended at the centre of a circle by an arc equal in length to its radius is an invariable angle. One angle of a triangle is 45°, and the circular measure... | |
 | Andrew Gray - 1884 - 276 стор.
...torsion has for moment Him sin a. Hence, by Coulomb's law of the proportionality of the 1 A radian is the angle subtended at the centre of a circle by an arc equal in length to the radius. It has generally been called in books on trigonometry hitherto by the ambiguous... | |
 | John Bascombe Lock - 1884 - 226 стор.
...to question 8 for the necessary logarithms. IIL WOOLWICH — PBELIMINABY. June, 1882. 1. Prove that the angle subtended at the centre of a circle by an arc equal in length to its radius is an invariable angle. One angle of a triangle is 45°, and the circular measure... | |
 | James Gordon MacGregor - 1887 - 540 стор.
...one sixtieth part of a degree, and the second, which is one sixtieth part of a minute. The radian is the angle subtended at the centre of a circle by an arc equal in length to the radius. As the circumference of a circle is 2-n- times the radius, the radian is equal... | |
 | James Gordon MacGregor - 1887 - 540 стор.
...one sixtieth part of a degree, and the second, which is one sixtieth part of a minute. The radian is the angle subtended at the centre of a circle by an arc equal in length to the radius. As the circumference of a circle is 27r times the radius, the radian is equal... | |
 | Webster Wells - 1887 - 200 стор.
...angles, and one of great importance, is known as the circular method, in which the unit of measurement is the angle subtended at the centre of a circle by an arc whose length is equal to the radius of the circle,. 5. Let AOB be any angle, and AOC the unit of circular... | |
 | Webster Wells - 1887 - 158 стор.
...angles, and one of great importance, is known as the circular method, in which the unit of measurement is the angle subtended at the centre of a circle by an arc whose length is equal to the radius of the circle. 5. Let AOВ be any angle, and AOC the unit of circula1... | |
 | 1888 - 924 стор.
...again into sixty equal parts called seconds. For theoretical purposes we define the unit angle to be the angle subtended at the centre of a circle by an arc equal to the radiia. This angle we calla "radian." In many treatises the radian measure of an angle is called the... | |
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Radian is the angle subtended, at the centre of a circle, by an arc equal in length to the radius... 
