 | Charles Davies - 1872 - 464 σελίδες
...of the cone, along lines which are called elements of cotUact. 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. A RADIUS of... | |
 | William Frothingham Bradbury - 1872 - 262 σελίδες
...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 ; as C D.... | |
 | William Frothingham Bradbury - 1872 - 124 σελίδες
...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 ; as C D.... | |
 | Eli Todd Tappan - 1873 - 288 σελίδες
...the following definitions: A CIRCLE is a portion of a plane bounded by a line called a CIRCUMFERENCE, every point of which is equally distant from a point within called the CENTER. 146. Theorem — A circumference is curved throughout. For a straight line can not have... | |
 | Gerardus Beekman Docharty - 1865 - 328 σελίδες
...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') (y-y1)... | |
 | Adrien Marie Legendre - 1874 - 500 σελίδες
...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. A RADIUS of... | |
 | George Payn Quackenbos - 1874 - 444 σελίδες
...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. II.... | |
 | Sir Norman Lockyer - 1874 - 332 σελίδες
...is a magnitude that has length, breadth, and thickness. 37. A Sphere is a solid bounded by a curved surface every point of 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 its centre,... | |
 | Hermann Krüsi - 1874 - 92 σελίδες
...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 line enclosing... | |
 | Daniel W. Fish - 1874 - 300 σελίδες
...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... | |
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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. 
