...centre ; and it divides the circle into two equal parts called semicircles. 14. The circumference of every circle is supposed 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...

...hemispheres, as the equator, etc. Small circles divide the globe into two unequal parts, as the tropics, etc. Every circle is supposed to be divided into 360 equal parts, called degrees ; every degree into sixty equal parts, called minutes ; and every minute into sixty equal parts, called...

...the angle contained by the lines BA and AD is called the angle BAD, or DA B. 56. The circumference of every circle is supposed to be divided into 360 equal parts, called degrees ; and each degree into 60 minutes, each minute into 60 seconds, and so on. Hence a semicircle contains...

...bushels, pecks quarts, and pints. Circular Measure, or Motion. 1. For what is Circular Measure used ? Circular Measure is used in estimating latitude and longitude, and also in measuring the motions of th« heavenly bodies. 2. How is every circle supposed to be divided ? Every circle is supposed to be...

...called a Quadrant ; and, if half a right angle, it is called an Octant. NOTE 2. The circumference of every circle is supposed to be divided into 360 equal parts, called degrees, and a degree into 60 equal parts, called minutes, and a minute into 60 seconds, and so on. Degrees...

...March to the 1st day of January following, neither day named being counted ? CIRCULAR MEASURE. 118. Circular measure is used in estimating latitude and...also in measuring the motions of the heavenly bodies. The circumference of every circle is supposed to be divided into 360 equal parts, called degrees. Each...

...but heaped measure is now abolished. DIVISION op THE CIRCUMFERENCE OF A CIRCLE. The circumference of every circle is supposed to be divided into 360 equal parts, called degrees; these, of course, are longer or shorter, according as the circle is greater or less. Each degree is...

...measured by the arcs of a circle contained by the two legs, having the angular point for its centre. 4. Every circle is supposed 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....

...these problems repeated at the end of the Uses of the Slide Rule. TRIGONOMETRY. THE circumference of a circle is supposed to be divided into 360 equal parts, called degrees. Each degree is divided into 60 minutes; each minute into GO seconds; and so on. Degrees are marked...

...the six parts is given. 21. For the purpose of trigonometrical calculation, the circumference of the circle is supposed to be divided into 360 equal parts, called degrees ; each degree is supposed to be di. rided into 60 equal parts, called minutes ; and each minute into...