 | Thomas Baker - 1850 - 244 pagina’s
...seconds, &c. Hence a semicircle contains 180 degrees, and a quadrant 90 degrees. 28. The measure of an angle is an arc of any circle, contained between the two lines which form the angle, the angular point being the centre ; and it is estimated by the number of degrees contained... | |
 | Oliver Byrne - 1852 - 604 pagina’s
...seconds, and so on. Hence a semicircle contains 180 degrees, and a quadrant 90 degrees. The measure of any angle is an arc of any circle contained between the...which form that angle, the angular point being the centre ; and it is estimated by the number of degrees contained in that arc. Hence, a right angle being... | |
 | Edward Shaw - 1852 - 426 pagina’s
...angular point, and ab and b с 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 b с d be double of the arc... | |
 | Lucius D. Gould - 1853 - 234 pagina’s
...seconds, etc. A semicircle, therefore, contains 180 degrees, and a quadrant 90 degrees. The measure of an angle is an arc of any circle contained between the...which form that angle, the angular point being the centre, Fig. 12, and is estimated by the number of degrees contained in that arc. ~PROBLEMS PLATE III.... | |
 | Frederick Augustus Griffiths - 1854 - 406 pagina’s
...treats of the relations, and calculations of the sides, and angles of plane triangles. The measure of an angle is an arc of any circle contained between the...which form that angle, the angular point being the centre ; and it is estimated by the number of degrees contained in that arc. Hence a right angle being... | |
 | John Weale - 1859 - 622 pagina’s
...perpendicular let fall from an angle or its vertex to the opposite side, called the base. 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 the centre. A solid is said to be cut by a plane when it is divided... | |
 | Frederick Augustus Griffiths - 1859 - 426 pagina’s
...treats of the relations, and calculations of the sides, and angles of plane triangles. The measure of an angle is an arc of any circle contained between the...which form that angle, the angular point being the centre ; and it is estimated by the number of degrees contained in that arc. Hence a right angle being... | |
 | Charles Hutton - 1860 - 1020 pagina’s
...so on. Hence a semicircle contains 180 degrees, and • quadrant 90 degrees. 08. The Measure of an angle is an arc of any circle contained between the...lines which form that angle, the angular point being die c< litre ; and it is estimated by llie number of degrees contained in that ¡in-, 59. Lines, or... | |
 | William Grier - 1861 - 316 pagina’s
...and so on. Hence a semicircle contains 180 degrees, and a quadrant 90 degrees. 58. The measure of an angle, is an arc of any circle contained between the...which form that angle, the angular point being the centre ; and it is estimated by the number of degrees contained in that arc. 59. Lines, or chords,... | |
 | Oliver Byrne - 1863 - 600 pagina’s
...seconds, and so onHence a semicircle contains 180 degrees, and a quadrant 90 degrees The measure of any angle is an arc of any circle contained between the...which form that angle, the angular point being the centre ; and it is estimated by the number of degrees contained in that arcHence, a right angle being... | |
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The Measure of an angle, 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. 
