| William Vogdes - Arithmetic - 1847 - 256 pages
...perpendicular falling upon it from the opposite angle. 30. A circle is a plane figure bounded by a curve line **which is equally distant from a point within, called the centre. The** boundary line is called the circumference. 31. An arc is any portion of the circumference. 32. A semicircle... | |
| Benjamin Greenleaf - Arithmetic - 1849 - 324 pages
...inches ? THE SPHERE. ART. 348. A SPHERE is a solid, bounded by one continued convex surface, every part **of which is equally distant from a point within, called the centre. The** axis or diameter of a sphere is a line passing through the centre, and terminated by the surface. QUESTIONS.... | |
| Elias Loomis - Conic sections - 1849 - 226 pages
...III. THE CIRCLE, AND THE MEASURE OF ANGLES. Definitions. 1. A circle is a plane figure bounded by a **line, every point of which is equally distant from a point within, called** the center. This bounding line is called the circumference of the circle. 2. A radius of a circle is... | |
| Charles Guilford Burnham - 1850
...round pyramid, having a circular base. 8. A sphere is a solid, bounded by one continued convex surface, **every point of which is equally distant from a point within, called the centre. The** sphere may be conceived to be formed by the revolution of a semicircle about its diameter, which remains... | |
| Benjamin Greenleaf - Arithmetic - 1850 - 360 pages
...top terminated in a point or vertex. 8. A sphere is a solid, bounded by one continued convex surface, **every point of which is equally distant from a point within, called the centre. The** sphere may be conceived to be formed by the revolution of a semicircle about its diameter, which remains... | |
| John Weale - 1850
...the top of a bed or canopy Sphere, in geometry, a globe, a solid contained under one uniform surface, **every point of which is equally distant from a point within, called the centre** of the sphere, and may be conceived to be generated by the revolution of a semicircle about its diameter,... | |
| John Weale - Technology - 1850 - 564 pages
...the top of a bed or canopy Sphere, in geometry, a globe, a solid contained under one uniform surface, **every point of which is equally distant from a point within, called the centre** of the sphere, and may be conceived to be generated by the revolution of a semicircle aboui its diameter,... | |
| Elias Loomis - Calculus - 1851 - 278 pages
...become x=r cos. «, y=r sin. v. SECTION IT. ON THE CIRCLE. (32.) A CIRCLE is a plane figure bounded by a **line, every point of which is equally distant from a point within called** the center. This bounding line is called the circumference of the circle. A radius of a circle is a... | |
| Benjamin Greenleaf - 1851
...Ans. 13.92-f- feet. ART. 284. A SPHERE is a solid bounded by one continued convex surface, every part **of which is equally distant from a point within, called the centre. The** diameter of a sphere is a straight line passing through the centre, and terminated by the surface ;... | |
| John Fair Stoddard - Arithmetic - 1852 - 299 pages
...NONAGOJ* ; that of t«i, a DECAGON ; that of twelve, a DODECAGON, &-i•.. A CIRCLE is a plane, terminated **by a curved line, every point of which is equally distant from a point within,** culled the center. The curved line is called the circumference The DIAMETER of a circle is a line passing... | |
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