 | Joseph Allen Galbraith - 1852 - 84 pages
...measuring angles, and representing them numerically, has been devised, which may be thus explained : The circumference of the circle is divided into 360 equal parts ; each of these parts subtends at the centre an angle equal to the збол part of four right angles, this... | |
 | Joseph Allen Galbraith - Mathematics - 1866 - 132 pages
...and surveying, another mode of measuring angles, and representing them numerically, has been devised. The circumference of the circle is divided into 360 equal parts ; each of these parts subtends at the centre an angle equal to the 360'" part of four right angles; this angle... | |
 | William Guy Peck - Arithmetic - 1878 - 240 pages
...gal. '4 gallons " 1 barrel . . m. 2 barrels " 1 hogshead . . Mid. COMPOUND NUMBERS. If a circumference is divided into 360 equal parts, each part is called a degree. 210. A Diameter is a straight line passing through the centre and terminating in the circumference... | |
 | Howard Parker Fairfield, Carl Stephen Dow - Machine-shop practice - 1917 - 192 pages
...angle will be that arc included between the sides of the angle. Angle A 0 B is measured by the arc A B. The circumference of the circle is divided into 360 equal parts, each called a degree. Each degree is divided into 60 equal parts called minutes. Each minute into 60 equal... | |
 | Thomas Alexander, Charles Madison Sarratt - Arithmetic - 1924 - 462 pages
...the same manner we write triangle ABCAAB C. If the circumference of a circle, the distance around it, is divided into 360 equal parts, each part is called a degree. The degree is marked °. Half a circle contains 180°, a fourth of a circle, 90°, and so on. A part... | |
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The circumference of the circle is divided into 360 equal parts, each called a degree. Each degree is divided into 60 equal parts called minutes. Each minute into 60 equal parts called seconds. The angle A 0 B will be an angle of 60° if the arc AB is... 