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A sphere is a solid bounded by a curved surface, every point of which is equally distant from a point within called the center.
Cyclopedia of Carpentry and Contracting ...: Architectural drawing ... - Page 64
1910

## Elements of Physical and Political Geography: Designed as a Text Book for ...

Cornelius S. Cartee - Physical geography - 1855 - 348 pages
...horizontal line. 105. A triangle is a figure having three angles and three sides. 106. A sphere is a figure bounded by a curved surface, every point of which is equally distant from the centre of the sphere. A hemisphere is half a sphere. The axis of a sphere is the line on which...

## Mathematical Dictionary and Cyclopedia of Mathematical Science: Comprising ...

Charles Davies, William Guy Peck - Electronic book - 1855 - 592 pages
...two straight lines cannot include a space. A circle is a portion of a plane bounded by a curved line, every point of which is equally distant from a point within, called the centre. 1 The curve is called the circumference, or in common language, the circle. So that in...

## A High-school Astronomy: In which the Descriptive, Physical, and Practical ...

Hiram Mattison - Astronomy - 1856 - 254 pages
...• c. i;. 18. ClBCLES AND ELLIPSES. A Circle is a plane figure, bounded by a curve line, every part of which is equally distant from a point within called the center. Concentric Circles are such as are drawn around a common center. The Circumference of a circle is the...

## The American Philosophical Arithmetic: Designed for the Use of Advanced ...

John Fair Stoddard - Arithmetic - 1856 - 312 pages
...ten, a DECAGON ; that of twelve, a DODECAGON, &c. A CIRCLE is a plane, terminated by a curved line, every point of which is equally distant from a point within, called the centre. The curved line is called the circumference. The DIAMETER of a circle is a line passing...

## Cornell's High School Geography: Forming Part Third of a Systematic Series ...

Sarah S. Cornell - Geography - 1857 - 422 pages
...the magnitude of the radius. Definition of a Sphere. — A Sphere is a body bounded by one continuous surface, every point of which is equally distant from a point within called its centre. Any line drawn from the centre to the surface is called a radius. A line passing through...

## Mathematical Dictionary and Cyclopedia of Mathematical Science: Comprising ...

Charles Davies, William Guy Peck - Mathematics - 1857 - 608 pages
...the mind an idea of a physical unit of measure, called a foot. So a " portion of space bounded by a surface, every point of which is equally distant from a point within, called the centre," is a mere conception of form. When we call it a sphere, we employ the term to express...

## Elements of Geometry and Conic Sections

Elias Loomis - Conic sections - 1858 - 234 pages
...THE CIRCLE, AND THE MEASURE OF ANGLES. Definitions. 1. A circk 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 a straight...

## Carpentry Made Easy: Or, The Science and Art of Framing, on a New and ...

William E. Bell - Bridge building - 1857 - 254 pages
...which have like positions in similar polygons. 34. The circumference of a circle is a curved line, every point of which is equally distant from a point within, called the centre. 35. The circle is the surface bounded by the circumference. 36. A radius of a circle is...