 | John Bonnycastle - 1829 - 256 σελίδες
...hypothenuse; and the other two sides are called legs. PRACTICAL GEOMETRY. 21 D / -E B *47. The circumference of every circle is supposed to be divided into 360 equal parts, called degrees; each degree into 60 equal parts, called minutes; and so on. 48. The measure of any right-lined angle... | |
 | Abel Flint - 1830 - 322 σελίδες
...divides the circle into two equal parts, called semicircles ; as AB or DE. Fig. 5. 14. The circumference of every circle is supposed to be divided into 360...and each minute into 60 equal parts, called seconds ; and these into thirds, &c . NOTE. Since all circles are divided into the same number of degrees,... | |
 | Charles Davies - 1830 - 318 σελίδες
...calculations, the circumference of the 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. 26. As the circumference of a circle may be regarded as a proper measure of angles, having their vertices... | |
 | Alexander Ingram - 1830 - 458 σελίδες
...is 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. NOTE 3. If two... | |
 | George Crabb - 1830 - 438 σελίδες
...circumference; the segment of a circle is a part cut off by a liue called the chord. The circumference of every circle is supposed to be divided into 360 equal parts, called degrees, every degree into 60 parts called minutes, and every minute into 60 parts called seconds. Solids are... | |
 | G. Rubie - 1830 - 204 σελίδες
...that which divides the Earth or Heavens into two unequal parts. Every Circle, whether great or small, is supposed to be divided into 360 equal parts, called degrees ; and each degree is subdivided into 60 equal parts, called minutes or miles; therefore, a Semicircle contains 180 degrees,... | |
 | Ellen Eliza Fitz - 1876 - 138 σελίδες
...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... | |
 | James Martin (of the Wedgwood inst, Burslem.) - 1876 - 334 σελίδες
...point where it touches the circle is called the point of contact. Ex. B. NOTE 1. — The circumference of every circle is supposed to be divided into 360 equal parts, called degrees, marked °. Hence, a semicircle will contain 180°; a quarter of a circle, or a quadrant, 80° ; the... | |
 | Henry Bartlett Maglathlin - 1876 - 230 σελίδες
...straight line drawn through the center, and terminated by the circumference, as AE. 173. The circumference of every circle is supposed to be divided into 360 equal parts, called Degrees. 370* What is a Circle ? The Circumference of a circle ? What is an Arc of a circle ? A Diameter? How... | |
 | Thomas Milner - 1876 - 818 σελίδες
...equator or the meridians. Small circles, such as the tropics, divide the globe into two unequal parts. 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... | |
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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 seconds ; and these into thirds, &c. 
