 | Elias Loomis - Geometry - 1871 - 302 pages
...of plane triangles; Spherical Trigonometry treats of spherical triangles. (19.) The circumference of every circle is supposed to be divided into 360 equal parts, called degrees ; each degree into 60 minutes, and each minute into 60 seconds. Degrees, minutes, and seconds are designated... | |
 | Henry Bartlett Maglathlin - 1872 - 220 pages
...line drawn through the center, and terminated by the circumference, as AE. 105. The circumference of every circle is supposed to be divided into 360 equal parts, called Degrees. BISO* 270° What is a Circle ? The Circumference of a circle ? What is an Arc of a cirele ? A Diameter... | |
 | Hugo Reid - Mathematics - 1872 - 148 pages
...two circumferences would exactly coincide. Division of the Circumference. 34. The circumference of a circle is supposed to be divided into 360 equal parts, called degrees, and marked °. Each degree is divided into 60 equal parts, called -minutes, and marked '. Each minute... | |
 | William Alexander Myers - Circle-squaring - 1873 - 238 pages
...treats of plane triangles ; spherical trigonometry treats of spherical triangles. The circumference of a circle is supposed to be divided into 360 equal parts, called degrees; each degree into 60 minutes, and each minute into 60 seconds. Degrees, minutes, and seconds are designated... | |
 | Robert Griffith Hatfield - Architecture - 1874 - 452 pages
...27,) theii each of the two angles is called a right angle. 131. — Definition. The circumference of every circle is supposed to be divided into 360 equal parts, called degrees ; hence a semi-circle contains 180 degrees, a quadrant 90, &c. Fig. 90. 132. — Definition. The measure... | |
 | William Alexander Myers - Circle-squaring - 1874 - 207 pages
...treats of plane triangles ; spherical trigonometry treats of spherical triangles. The circumference of a circle is supposed to be divided into 360 equal parts, called degrees; each degree into 60 minutes, and each minute into 60 seconds. Degrees, minutes, and seconds are designated... | |
 | Henry Bartlett Maglathlin - Arithmetic - 1875 - 216 pages
...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. •What is a Circle? The Circumference of a circle? What is an Arc of a circle ? A Diameter? How is... | |
 | Henry Bartlett Maglathlin - Arithmetic - 1876 - 230 pages
...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... | |
 | James Martin (of the Wedgwood inst, Burslem.) - 1876 - 334 pages
...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... | |
 | Thomas Milner - 1876 - 818 pages
...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... | |
| |
The circumference of every circle is supposed to be divided into 360 equal parts, called degrees... 
