 | Ellen Eliza Fitz - Globes - 1876 - 138 pages
...has length, breadth, and thickness. 13. A sphere is a solid terminated by a curved surface, all the points of which are equally distant from a point within, called the centre. A sphere may be formed or generated by the revolution of a semicircle about its diameter. 14. The radius... | |
 | George Albert Wentworth - Geometry - 1877 - 416 pages
...BOOK VIII. THE SPHERE. ON SECTIONS AND TANGENTS. 669. DBF. A Sphere is a solid bounded by a surface all points of which are equally distant from a point within called the centre. A sphere may be generated by the revolution of a semicircle about its diameter as an axis. 670. DBF.... | |
 | Samuel Mecutchen - 1877 - 128 pages
...Measure is used in measuring angles, and arcs of circles, and in calculating latitude and longitude, etc. A Circle is a plane figure bounded by a curved line, called the circumference, which is every•> where the same distance from a point within, called the centre. An Arc is any portion... | |
 | Albert Newton Raub - Arithmetic - 1877 - 348 pages
...two opposite angles 50 rods : what is the area of the field ? Ans. 12 A. 149.7 P. 5. CERCLES. 356. A Circle is a plane figure bounded by a curved line called the circumference, every point of which is equally distant from a point within, called the centre. 357. The diameter of... | |
 | Elias Loomis - Conic sections - 1877 - 458 pages
...CIRCI.E, AND THE MEASURE OF ANGI.ES. Definitions. 1. A circle is a plane figure bounded by a line, all the points of which are equally distant from a point within, called the centre. The line which bounds the circle is called its circumference. 2. Any straight line drawn from the centre... | |
 | George Albert Wentworth - Geometry - 1877 - 416 pages
...BOOK II. CIRCLES. DEFINITIONS. 160. DBF. A Circle is a plane figure bounded by a curved line, all the points of which are equally distant from a point within called the Centre. 161. DEF. The Circumference of a circle is the line which bounds the circle. 162. DBF. A Radius of... | |
 | Alfred Hiley - 1879 - 228 pages
...polygon ; but if the sides are unequal, or the angles unequal, then it is an irregular polygon. XXIX. A circle is a plane figure bounded by a curved line, called the circumference, and is such that all the straight lines drawn from a certain point within it to the circumference are... | |
 | Rolla Rouse - 1879 - 400 pages
...another and opposed angle. Thus in Fig. C 9 and 10 the lines bd and ca are severally diagonals. 19. A Circle is a plane figure, bounded by a curved line called the Circumference, which is in all parts equidistant from a point within called the Centre. Fig. C 1, abed being circumference... | |
 | William Frothingham Bradbury - Geometry - 1880 - 260 pages
...side made by a perpendicular from the vertex of the right angle. BOOK III. THE CIRCLE. DEFINITIONS. 1. A Circle is a plane figure bounded by a curved line called the circumference, every point of which is equally distant from a point within called the centre ; as ABD E. 2. An Arc... | |
 | Horatio Nelson Robinson - 1875 - 472 pages
...of each separately. The sum of these areas will be the area of the whole polygon. THE CIRCLE. 748. A Circle is a plane figure bounded by a curved line, called the circumference, every point of which is equally distant from a point within called the center. 749. The Diameter of... | |
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A Circle is a plane figure bounded by a curved line, called the Circumference, all points of which are equally distant from a point within, called the Centre. 
