 | Charles Hutton - 1788 - 728 σελίδες
...Hence a femicircle contains 1 80 degrees, and a quadrant 90 degrees. 57. The meafureofa right-lined angle, is. an arc of any circle contained between...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... | |
 | 1801 - 446 σελίδες
...Hence a 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...which form that angle, the angular point being the <?entrc ; and it is estimated by the nuaii bcr of degrees, contained in that arc. Hence a, right angle... | |
 | Peter Nicholson - 1809 - 426 σελίδες
...point, and 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... | |
 | Charles Hutton - 1811 - 406 σελίδες
...into 60 Seconds, and so on. Hence a semicircle contains 1 80 degrees, and a quadrant 90 degrees. 58. The Measure of an angle, is an arc of any circle contained between the two lines which form that angle, the an gi ilar point being the centre; and it is estimated by the number of degrees contained in that arc.... | |
 | Encyclopaedia Perthensis - 1816 - 772 σελίδες
...Hence 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...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... | |
 | 1816 - 764 σελίδες
...a femicircle contains 180 degres, and a quadrant 90 degrees. 41. fhf MEASURE of a RECTILINEAL ANGLS 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. 25. 42. IDENTICAL FIGURES are fuch as have all... | |
 | Charles Hutton - 1816 - 610 σελίδες
...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 two...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... | |
 | Charles Hutton - 1822 - 616 σελίδες
...semicircle contains 100 degrees, and a quadrant 90 degrees. 3. The measure of an angle (Def. 58, Geom.) is an arc of any circle contained between the two...centre ; and it is estimated by the number of degrees continued in that arc. Hence, a right angle, being measured by a quadrant, or quarter of the circle,... | |
 | Thomas Curtis - 1829 - 814 σελίδες
...a semicircle contains 180 degrees, and a quadrant ninety degrees. 41. The MEASURE OF A RECTILINEAL ANGLE is an arc of any circle contained between the...centre, and it is estimated by the number of degrees in that arc. Fig. 25. 42. IDENTICAL FIGURES are such as have all the sides and [all the angles of the... | |
 | John Bonnycastle - 1829 - 256 σελίδες
...60 equal parts, called minutes; and so on. 48. The measure of any right-lined angle is an arc of a circle contained between the two lines which form that angle, the angular point being the centre. Note. The angle is estimated by the number of degrees contained in the arc; whence a right angle is... | |
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The circumference of every circle is supposed to be divided into 360 equal parts, called degrees; and each degree into 60 minutes, each minute into 60 seconds, and so on. Hence a semicircle contains 180 degrees, and a quadrant 90 degrees. 58. The Measure... 
