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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 Architecture: Architectural drawing. Lettering - Page 48
1912

## An Elementary Geometry and Trigonometry

William Frothingham Bradbury - Geometry - 1872 - 268 pages
...CIRCLE. DEFINITIONS. 1. A Circle is a piano 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. The Radius of a circle is a lino drawn from the centre to the circumference...

## An Elementary Geometry

William Frothingham Bradbury - Geometry - 1872 - 124 pages
...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. The Eadius of a circle is a line drawn from the centre to the circumference...

## New Rudiments of Arithmetic: Combining Mental and Slate Exercises for ...

James Bates Thomson - Arithmetic - 1872 - 234 pages
...in Astronomy. 36. What is a Circle ? 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. 37. What is the Circumference of a Circle ? The Circumference of a Circle is the curve line by which...

## Elements of Analytical Geometry, and of the Differential and Integral Calculus

Gerardus Beekman Docharty - Calculus - 1865 - 328 pages
...of intersection. CHAPTER II. ON THE CIRCLE. (28.) The circumference of the circle is a plane curve, every point of which is equally distant from a point within called the centre. PROPOSITION I. (29.) The equation of the circle referred to oblique axes is (xx'Y+(yy'Y±1(xx')...

## New Mental Arithmetic, for Primary Departments ...

James Bates Thomson - Arithmetic - 1873 - 158 pages
...astronomy. 3. What is a circle ? Ans. 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. 4. What is the circumference of a circle ? Ans. The Circumference of a circle is the curve line by...

## Elements of Astronomy: Accompanied with Numerous Illustrations, a Colored ...

Sir Norman Lockyer - Astronomy - 1874 - 332 pages
...ellipse will be |, or .66+. 36. A Solid is a magnitude that has length, breadth, and thickness. 37. A Sphere is a solid bounded by a curved surface every...which is equally distant from a point within, called the centre. A Hemisphere is half a sphere. A Diameter of a sphere is a straight line passing through...

## A Higher Arithmetic

George Payn Quackenbos - Arithmetic - 1874 - 444 pages
...its top is 4 in. Find the solid contents. Ans. 3920.7168 cu. in. 691. Spheres. — A Sphere is a body bounded by a curved surface, every point of which is equally distant from a point within, called the Centre. RULES. — /. To find the surface of a sphere, multiply the square of the diameter by 3.14159....

## The Complete Arithmetic, Oral and Written: Second Part

Daniel W. Fish - Arithmetic - 1874 - 300 pages
...polygon. THE CIRCLE. 9O1. 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. 902. The Diameter of a circle is a line passing through its center, and terminated at both ends by...