| Ellen Eliza Fitz - Globes - 1876 - 138 pages
...angles, the circumference of a circle is divided into 360 equal parts, called degrees (marked °), **each degree into 60 equal parts, called minutes ('),...and each minute into 60 equal parts, called seconds** ("). Then the number of degrees, minutes, and seconds, in the arc intercepted by the sides of an angle,... | |
| Benjamin Greenleaf - Trigonometry - 1876 - 204 pages
...fixed upon as the unit of angular measure. For this purpose a right angle is generally divided into 90 **equal parts called degrees, each degree into 60 equal parts called minutes,** each minute into 60 equal parts called seconds ; then an angle is expressed by the number of degrees,... | |
| James Rosser - 1877 - 174 pages
...ARC is any portion (long or short) of the circumference, as AF, or B r. The circumference of every **circle is divided into 360 equal parts, called DEGREES...and each minute into 60 equal parts called seconds;** which are respectively marked ° ' ". (See p. 1, Table A.) Since the circumference of a circle contains... | |
| Albert Newton Raub - Arithmetic - 1877 - 176 pages
...the centre and limited by the circumference, as AD, is called a Diameter. 129. Every circumference **is divided into 360 equal parts, called degrees; each...and each minute into 60 equal parts, called seconds.** TABLE. 60 seconds ( " ) =1 minute, ( ' ). 60 minutes =1 degree, (°). 30 degrees = 1 sign, s. 12 signs... | |
| Edward Brooks - Arithmetic - 1877 - 444 pages
...the circumference is called a quadrant. 290. For the purpose of measuring angles, the circumference **is divided into 360 equal parts, called degrees ; each degree into 60 equal parts, called minutes;** each minute into GO equal parts, called seconds. 291. Any angle having its vertex at the centre, is... | |
| Edward Brooks - Arithmetic - 1877 - 560 pages
...the circumference is called a quadrant. 399. For the purpose of measuring angles, the circumference **is divided into 360 equal parts, called degrees; each degree into 60 equal parts, called minutes;** each minute into <50 equal parts called seconds. 400. Any angle having its vertex at the centre, is... | |
| Edward Brooks - Arithmetic - 1877 - 438 pages
...the circumference is called a quadrant. * 290. For the purpose of measuring angles, the circumference **is divided into 360 equal parts, called degrees; each degree into 60 equal parts, called minutes;** each minute into 60 equal parts, called seconds. 2O1. Any angle having its vertex at the centre, is... | |
| Edward Brooks - Arithmetic - 1877 - 250 pages
...the circumference is called a quadrant. , 290. For the purpose of measuring angles, the circumference **is divided into 360 equal parts, called degrees ; each degree into 60 equal parts, called minutes;** each minute into 60 equal parts, called seconds. 291. Any angle having its vertex at the centre, is... | |
| David Murray - Surveying - 1878 - 284 pages
...the circumference of a circle to be divided into 360 equal parts, called degrees, and each degree _ **into 60 equal parts, called minutes, and each minute into 60 equal parts, called seconds.** They are expressed by the FIG. 6. characters ° ' ". The magnitude of the angle A is thus expressed... | |
| Thomas Henry Huxley - Physical geography - 1878 - 428 pages
...But no one can speak of " parallels of longitude," because these 1 Each degree of latitude is divided **into 60 equal parts called minutes, and each minute into 60 equal parts called seconds.** Degrees are represented by the symbol °, minutes by ', and seconds by ". Minutes and seconds of time... | |
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