...spherical triangles. DIVISION OF THE CIRCUMFERENCE. I. For the purposes of trigonometrical calculations, the circumference of the circle is conceived to be divided into 360 equal parts, called degrees ; each degree into 60 equal parts, called minutes; and each minute into 60 equal parts, called seconds....

...the straight line EK as may be thought necessary may be computed. The circle is used to measure the divergence of the two lines forming an angle : for...divided into 360 equal parts, called degrees ; the degree is divided into 60 parts called minutes, and the minute into 60 parts called seconds ; the semicircle...

...axis. Division of the Circumference, and the Measure of Angles. § 304. The Circumference of every circle is conceived to be divided into 360 equal parts called degrees, each degree into 60 equal parts called minutes, and each minute into 60 equal parts called seconds....

...axis. Division of the Circumference, and the Measure of Angles. § 393. The Circumference of every circle is conceived to be divided into 360 equal parts called degrees, each degree into 60 equal parts called minutes, and each minute into 60 equal parts called seconds....

...right angles, or of the sum of all the angles that can be placed, side by side, about the centre A . The circumference of the circle is conceived to be divided into 360 equal parts, called degrees; the degree into 60 equal parts, called minutes ; and the minute into 60 equal parts, called seconds ; the...

...the fixed point within is the center of the circle. 227. For the measurement of angles (see Art. 56), the circumference of the circle is conceived to be divided into 360 equal parts, called degrees. The angle in this figure is an angle of 90 degrees — one fourth of the 360 equal parts into which the...

...the fixed point within is the center of the circle. 227. For the measurement of angles (see Art. 56), the circumference of the circle is conceived to be divided into 360 equal parts, called degrees. The angle in this figure is an angle of 90 degrees—one fourth of the 360 equal parts into which the circumference...

...been swung. Angles are, in fact, measured in this way, that is, on the circumference of a circle. A circle is conceived to be divided into 360 equal parts, called degrees ; each degree into 60 minutes ; each minute into 60 seconds. Thus, when you have swung this strip of...

...been swung. Angles are, in fact, measured in this way, that is, on the circumference of a circle. A circle is conceived to be divided into 360 equal parts, called degrees ; each degree into 60 minutes ; each minute into 60 seconds. Thus, when you have swung this strip of...

...Wherever used in this book, unless otherwise stated, the term circle refers to the circumference. Every circle is conceived to be divided into 360 equal parts called degrees. The greater the size of the circle, the greater is the length of each degree. A radius of a circle or of...