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 Βιβλία Βιβλία
Geom.) is an arc of any circle contained between the two lines which form that angle, the angular point being the centre ; and it is •estimated by the number of degrees contained in that arc.
A Course of Mathematics ...: Composed for the Use of the Royal Military ... - Σελίδα 3
των Charles Hutton - 1811
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## A Treatise on Mensuration, Both in Theory and Practice

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...femicircle contains 1 80 degrees, and a quadrant 90 degrees. 57. The meafureofa right-lined angle, is. an arc of any circle contained between the two...which form that angle, the angular point being the center; and it is eftimated by the number of degrees contained '' ' in that arc. Hence a right-angle...

## Mathematics: Compiled from the Best Authors and Intended to be the ..., Τόμος 1

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Charles Hutton - 1807
...degree into 60 Minutes, •each minute into 60 Seconds, and so on. Hence a semicircle contains 180 degrees, and a quadrant 90 degrees. 3. The Measure...of the circle, is an angle of 90 degrees; and the sum of the three angles of every triangle, or two right angles, is equal to 1 80 degrees. Therefore,...

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Samuel Webber - 1808
...semicircle contains 1 80 degrees, and a quadrant 90 degrees, 57. The measure of a rightlined angle is an arc of any circle, contained between the two...degrees, contained in that arc. Hence a right angle is an angle of 90 degrees. 58. Identical figures are such, as have all the sides and all the angles...

## The principles of architecture, Τόμος 1

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...ab, and bc, will be the two sides containing that angle. 53. The measure of any right lined angle, is an arc of any circle contained between the two lines which form the angle, the angular point being in the centre, as K. Thus . if the arc bed be double of the arc...

## A Course of Mathematics: For the Use of Academies as Well as ..., Τόμος 1

Charles Hutton - 1812
...a semicircle contains 180 degrees, and a quadrant 90 degrees. 3. The measure of an angle (Def. 58, Geom.) is an arc of any circle contained between the...of the circle, is an angle of 90 degrees ; and the sum of the three angles of every triangle, or two right angles, is equal to ISO degrees. Therefore,...

## Encyclopaedia Perthensis; or, Universal dictionary of Knowledge ..., Τόμος 10

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...a femicircle contains 180 degres, and a quadrant 90 degrees. 41. The MEASURE of a RECTILINEAL ANGLE is an arc of any circle contained between the two...angle, the angular point being the centre, and it is eftimated by the number of degrees in that arc. Fig. 15. 4t. IDENTICAL FIGURES are fuch as liavc all...

## Encyclopaedia Perthensis; Or Universal Dictionary of the Arts ..., Τόμος 10

1816
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...a simicirclo contains 130 degrees, and aquadi-ant 90 degrees. 3 The measure of an angle (Di-f. 58, Geom.) is an arc of any circle contained between the...angle, the angular point being the centre ; and it ia estimated by the numiier of degrees contained In that arc. Hence, a right angle, being measured...

## A Course of Mathematics: For the Use of Academies, as Well as Private ...

Charles Hutton - 1822
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