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Книги Книги 21 - 30 з 186 у Radian is the angle subtended, at the centre of a circle, by an arc equal in length....
" Radian is the angle subtended, at the centre of a circle, by an arc equal in length to the radius... "
A Manual of Mechanics: An Elementary Text-book Designed for Students of ... - Сторінка 61
автори: Thomas Minchin Goodeve - 1886 - 228 стор.
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Nature, Том 27

Sir Norman Lockyer - 1883
...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...
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Woolwich mathematical papers [aftwerw.] Mathematical papers for admission ...

Woolwich roy. military acad - 1884
...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...
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Absolute Measurements in Electricity and Magnetism

Andrew Gray - 1884 - 207 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...
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A Treatise on Higher Trigonometry

John Bascombe Lock - 1884 - 208 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...
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An Elementary Treatise on Kinematics and Dynamics

James Gordon MacGregor - 1887 - 512 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...
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An Elementary Treatise on Kinematics and Dynamics

James Gordon MacGregor - 1887 - 512 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...
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The Essentials of Plane and Spherical Trigonometry

Webster Wells - 1887 - 151 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...
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Plane Trigonometry

Webster Wells - 1887 - 103 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...
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The Encyclopaedia Britannica: A Dictionary of Arts, Sciences, and ..., Том 16

1888
...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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A Text-book of Geometry

George Albert Wentworth - 1888 - 386 стор.
...the centre by an arc 6 feet 5 inches long, if the radius of the circle is 8 feet 2 inches. 414. Find the angle subtended at the centre of a circle by an arc whose length is equal to the radius of the circle. 415. What is the length of the arc subtended by...
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