 | Francis Joseph Grund - Geometry, Plane - 1830 - 274 pages
...the arcs intercepted between their legs are in proportion to the angles at the centre. Remark 2. If the circumference of a circle is divided into 360 equal parts, called degrees; each decree again into 60 equal parts, called minutes; each minute again into 60 equal parts, called... | |
 | Francis Joseph Grund - Geometry, Plane - 1834 - 212 pages
...the arcs intercepted between their legs are in proportion to the angles at the centre. Remark 2. If the circumference of a circle is divided into 360 equal parts, called degrees ; each degree again into 60 equal parts, called minutes; each minute again into 60 equal parts, called... | |
 | Thomas Rainey - Arithmetic - 1849 - 334 pages
...half and circulus, a circle. ** Ellipse is from the Gr. root VJMITU or elleipo, to pass by or reject. The circumference of a circle is divided* into 360 equal parts, called degrees ; each of these degrees, into 60 parts, called minutes /t and each of these minutes into 60 parts,... | |
 | George Augustus Walton, Electa Nobles Lincoln Walton - Arithmetic - 1869 - 350 pages
...is called a Diameter. Define plane surface ; circle ; circumference ; arc ; radius ; diameter. 33O. The circumference of a circle is divided into 360 equal parts called degrees, each degree into 60 minutes, and each minute into 60 seconds. These are the units of CIRCULAR- MEASURE.... | |
 | Alfred Hiley - 1871 - 184 pages
...-XIV. THE ARC OP A CIRCLE. Definitions. — An arc of a circle is any part of the circumference, c Thus ACB is an arc of a circle less than a semicircle....at the centre by the arc ACB. The circumference of any circle contains 360°. The arc ACB bears the same ratio to the circumference of the circle that... | |
 | Samuel Sloan - 1873 - 298 pages
...and two radii drawn to its extremities ; a line is tangent to a circle which does not intersect it. The circumference of a circle is divided into 360 equal parts, called degrees ; it will be observed that an angle of 45° is the half of a rightangle ; an angle of 60° is two-thirds... | |
 | George Augustus Walton - Arithmetic - 1873 - 348 pages
...is called a Diameter. Ijefine plane surface ; circle ; circumference ; arc ; radius ; diameter. 330. The circumference of a circle is divided into 360 equal parts called degrees, each degree into 60 minutes, and each minute into 60 seconds. These are the units of CIRCULAR MEASURE.... | |
 | Ellen Eliza Fitz - Globes - 1876 - 138 pages
...the arcs EF and E G. In order to express conveniently the values of arcs as the measures of 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,... | |
 | Ellen Eliza Fitz - Globes - 1876 - 138 pages
...the arcs EF and E G. In order to express conveniently the values of arcs as the measures of 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,... | |
 | George Augustus Walton, Electa Nobles Lincoln Walton - Arithmetic - 1877 - 348 pages
...is called a Diameter. Define plane surface ; circle ; circumference ; arc ; radius ; diameter. 330. The circumference of a circle is divided into 360 equal parts called degrees, each degree into 60 minutes, and each minute into 60 seconds. These are the units of CIRCULAR MEASURE.... | |
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The circumference of a circle is divided into 360 equal parts, called degrees; each degree into 60 minutes ; each minute into 60 seconds. 
