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" 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. "
Robinson's New Practical Arithmetic for Common Schools and Academies - Page 184
by Horatio Nelson Robinson - 1892 - 416 pages
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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')...
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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...
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The Complete Arithmetic: Oral and Written

Daniel W. Fish - Arithmetic - 1874 - 538 pages
...of each separately. The enm of these areas will be the area of the whole polygon. THE CIRCLE. 9O1. A Circle is a plane figure bounded by a curved line,...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...
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The Complete Arithmetic, Oral and Written: Second Part

Daniel W. Fish - Arithmetic - 1874 - 302 pages
...of each separately. The sum of these areas will be the area of the whole polygon. THE CIRCLE. 9O1. A Circle is a plane figure bounded by a curved line,...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...
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The Quadrature of the Circle: The Square Root of Two, and the Right-angled ...

William Alexander Myers - Circle-squaring - 1874 - 207 pages
...OF PLANE ANI} RECTILINEAL SURFACED BC D C 0 E H Of ike Circle i see Plate 3. 1. A circle is a plain figure bounded by a curved line called the circumference,...point of which is equally distant from a point within* And this point within is called the center A, F, C, JB, H, Z>, G is the circumference and E the center...
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Elements of Astronomy: Accompanied with Numerous Illustrations, a Colored ...

Sir Norman Lockyer - Astronomy - 1874 - 332 pages
...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...
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A Higher Arithmetic

George Payn Quackenbos - Arithmetic - 1874 - 444 pages
...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....
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Krüsi's Drawing: Manual for Teachers. Inventive Course--synthetic Series

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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Elements of Geometry and Trigonometry: From the Works of A.M. Legendre

Adrien Marie Legendre - Geometry - 1874 - 500 pages
...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....
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An Intermediate Arithmetic ...: (Robinson's Shorter Course).

Daniel W. Fish - 1874 - 320 pages
...part of the circumference of any circle. 325. A Circle is a plane figure bounded by a curved line, every point of which is equally distant from a point within called A the center. 326. A Circumference is the line that bounds the circle. 327. An Arc is any part of the...
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