| Charles Hutton - Measurement - 1788 - 728 pages
...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 - 1801 - 426 pages
...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....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... | |
| Samuel Webber - Mathematics - 1808 - 470 pages
...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... | |
| Peter Nicholson - 1809 - 426 pages
...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 - Mathematics - 1811
...a semicircle contains 1 80 degrees, and a quadrant 90 degrees. 3. The Measure of an angle (Def. 57, **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 180 degrees. Therefore,... | |
| Charles Hutton - Mathematics - 1811
...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.... | |
| Encyclopedias and dictionaries - 1816
...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... | |
| Encyclopaedia Perthensis - 1816 - 772 pages
...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... | |
| Charles Hutton - Mathematics - 1822 - 618 pages
...each degree into 60 Minutes, each minute into 60 Seconds, and so on. Hence a semicircle contains 100 **degrees, and a quadrant 90 degrees. 3. The measure...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 - Aeronautics - 1829 - 814 pages
...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 two...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... | |
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