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 Книги Книги 11 - 20 з 180 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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## Plane Trigonometry for the Use of Colleges and Schools: With Numerous Examples

Isaac Todhunter - 1874 - 341 стор.
...that = 57 '29577951...; this ÎT therefore is the number of degrees contained in the angle which is subtended at the centre of a circle by an arc equal to the radius. 19. Thus there are two methods of forming an idea of the magnitude of an angle which is estimated by...
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## First B.A. Examination, University of London: A Hand-book to the Study of ...

J. G - 1878 - 372 стор.
...numerical value of TT to five decimal places, calculate, to the nearest integer, the number of seconds in the angle subtended at the centre of a circle by an arc of length equal to that of the radius of the circle. 11. Assuming the fundamental trigonometrical formulae...
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## The naval architect's and shipbuilder's pocket book of formulæ [&c.].

Clement Mackrow - 1879
...Answer : 24-2708 degrees. THE CIRCULAR MEASURE. 1st. The unit of circular measure is an angle which is subtended at the centre of a circle by an arc equal to the radius of that circle. Such an angle is equal to 2 right angles = _^80°_ = 57,0.29.8) near]y ir ,. 3*14159...
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## Military examinations. Mathematical examination papers, set for entrance to ...

...an hour ; and it overtakes A just on entering Q. Find the rates at which they started. 1. Show that the angle subtended at the centre of a circle by an arc equal to the radius is invariable. Taking 22 : 7 as the ratio of the circumference of a circle to its diameter, and assuming...
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## Mathematical Formulae: For the Use of Candidates Preparing for the Army ...

Robert Marriott Milburn - 1880 - 100 стор.
...Measure of any angle is the numerical ratio its subtending arc radius 7. The unit of Circular Measure is the angle subtended at the centre of a circle by an arc equal in length to the radius = i-?-=570-2957795=2o6264"-8. 7T log 57-2957795 = 1-7581226; log 206264-8=5-3144251....
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## Military examinations. Mathematical examination papers, set at entrance to ...

...triangles. 7. Find the Arithmetic, Geometric, and Harmonic means between two given straight lines. 8. The angle subtended at the centre of a circle by an arc, which is equal in length to the radius, is invariable. Express seven-sixteenths of a right angle in...
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## The Bombay University Calendar for the Year 1880-81

bombay thacker - 1880
...rectilineal figure similar and similarly situated to a given rectilineal figure of four sides. 6. Prove that the angle subtended at the centre of a circle by an arc which is equal in length to the radios is an invariable angle. Find approximately the number of degrees...
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## London graduation mathematics, questions in arithmetic and algebra set from ...

Thomas Kimber - 1880
...numerical value of ir to five decimal places, calculate, to the nearest integer, the number of seconds in the angle subtended at the centre of a circle by an arc of length equal to that of the radius of the circle. 17. Assuming the fundamental trigonometrical formulas...
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## Introduction to plane trigonometry

Thomas Grenfell Vyvyan - 1882
...the circle ; that is when P= 2-nr, A = Trr*. The area of a circle of radius r is therefore Trr2. 68. The angle subtended at the centre of a circle by an arc equal in length to the radius is constant. Let the arc AB be equal to the radius OA. Let OC be perpendicular...
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