 | 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... | |
 | 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... | |
 | 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')... | |
 | 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... | |
 | 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... | |
 | 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.... | |
 | Daniel W. Fish - Arithmetic - 1874 - 302 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... | |
 | 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. 9O2. The Diameter of a circle is a line passing through its center, and terminated at both ends by... | |
 | Adrien Marie Legendre - Geometry - 1874 - 500 pages
...of the cone, along lines which are called elements of contact. 12. A SPHERE is a volume bounded by a surface, every point of which is equally distant from a point within called the centre. A sphere may be generated by a semicircle revolving about its diameter as an axis. 13.... | |
 | Hermann Krüsi - Decoration and ornament - 1874 - 92 pages
...AND DESIGN. THE CIRCLE. A circle, considered mathematically, is a space surrounded by a curved line every point of which is equally distant from a point within called the centre. In common language, and generally in drawing, the term circle is used to represent the... | |
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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. 
