 | Almon Ticknor - 1849 - 156 sider
...B and C. SECTION 4. — THE CIRCLE AND MEASUREMENT or ANGLES. 27. The circumference of a circle is a curved line, all the points of which are equally distant from a point within, called the centre. Every straight line, CA, CE, ,CD, drawn from the centre to the circumference is called a radius, or... | |
 | Rufus Putnam - 1849 - 276 sider
...end to the middle of the opposite end. 10. A SPHERE, or CLOSE, is a solid bounded by a curve surface, all the points of which are equally distant from a point within called the centre. 11. A hemisphere is half a sphere. 12. The axis or diameter of a sphere is a line passing through the... | |
 | J. M. Scribner - 1849 - 286 sider
...revolution of an ellipse about either of its axes. 6. A sphere is a solid, terminated by a curved surface, all the points of which are equally distant from a point within, called the center. A sphere may be described by the revolution of a semicircle about a diameter. 7. A radius... | |
 | Elias Loomis - 1849 - 252 sider
...pentagons. BOOK IX. SPHERICAL GEOMETRY. Definitions. 1. A sphere is a solid bounded by a curved surface, all the points of which are equally distant from a point within, called the center. The sphere may be conceived to be described by the revolution of a semicircle ADB, about... | |
 | George Roberts Perkins - 1850 - 332 sider
...prism; hence they will be their lines of contact. 7. A sphere is a solid terminated by a curve surface, all the points of which are equally distant from a point within, called the centre. The sphere m-ay be conceived to be generated by the revolution of a semicircle DAE about its diameter DE;... | |
 | Anna Cabot Lowell - 1850 - 412 sider
...of a Planet. Sidereal and Apparent Time. § 1. 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. The radius of a sphere is a straight line drawn from the centre to a point in the surface ; the diameter,... | |
 | Adrien Marie Legendre - 1852 - 436 sider
...THE CIRCLE, AND THE MEASUREMENT OF ANGLES. DEFINITIONS. 1. The CIRCUMFERENCE OF A CIRCLE is a curve line, all the points of which, are equally distant from a point within, called the centre. The circle is the portion of the plane terminated by the circumference. 2. Every straight line, drawn from... | |
 | Charles Davies - 1854 - 436 sider
...THE CIRCLE, AND THE MEASUREMENT OF ANGLES. DEFINITIONS. 1. The CIRCUMFERENCE OF A CIRCLE is a curve line, all the points of which are equally distant from a point within, called the centre. The circle is the portion of the plane terminated by the circumference. 2. Every straight line, drawn from... | |
 | Charles Davies, William Guy Peck - 1855 - 592 sider
...a round form]. A portion of a plane AEBF. bounded by a curved line, even' point of which is equally distant from a point within -*'~ called the centre. The bounding line is called the circumference. The term circle, is often applied to the circumference or bounding line, but this is not strictly correct,... | |
 | Jeremiah Day - 1855 - 344 sider
...ART. 18. Definition I. A circle is a plane bounded by a line which is equally distant in all its parts from a point within called the centre. The bounding line is called the circumference or periphery. An arc is any portion of the circumference. A semi-circle is half, and a quadrant onefourth... | |
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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. 
