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A diameter of a circle is a straight line drawn through the center and terminated both ways by the circumference, as AC in Fig.
A Treatise on Spherics: Comprising the Elements of Spherical Geometry, and ... - Page iii
by Daniel Cresswell - 1816 - 294 pages

Natural philosophy for beginners

Isaac Todhunter - 1877 - 442 pages
...centre of the sphere. A radius of a sphere is a straight line drawn from the centre to the surface. A diameter of a sphere is a straight line drawn through the centre and terminated both ways by the surface. A sphere is sometimes called a globe: marbles and billiard...

Elementary Geography: Taught by Means of Pictures, Maps, Chars, Diagrams ...

James Monteith - Alaska - 1883 - 94 pages
...place. A Sphere or Globe. A Hemisphere. 37. A sphere is a globe ; a hemisphere is half a globe. The diameter of a sphere is a straight line drawn through the center, from side to side. A fence separating one farm from another is a real line ; but, without a fence or...

New Complete Arithmetic on the Inductive Method: With Parallel Mental and ...

James William Nicholson - Arithmetic - 1885 - 348 pages
...a curved surface all points of which are equally distant from a point within called the center. The diameter of a sphere is a straight line drawn through...the center and terminated both ways by the surface. The radius is a straight line drawn from the center to the surface. 495. PRINCIPLE. — The surface...

Practical Work in Geography: For the Use of Teachers and Advanced Pupils ...

Henry McCormick - Geography - 1885 - 424 pages
...? The radius of a sphere is a straight line drawn from the center to any point in the surface. The diameter of a sphere is a straight line drawn through the center and terminating in the surface. Every section of a sphere made by a plane is a circle. If an orange be...

An Advanced Arithmetic, Theoretical and Practical

James William Nicholson - Arithmetic - 1889 - 408 pages
...radius of a circle is a straight line drawn from the center to the circumference ; and the diameter is a straight line drawn through the center and terminated both ways by the circumference. 263. Angular or circular measures are used in measuring angles, determining latitude...

Elements of Geometry: Plane and Solid

John Macnie - Geometry - 1895 - 392 pages
...584. A radius of a sphere is any straight line drawn from the center to the surface. A diameter is any straight line drawn through the center and terminated both ways by the surface. 585. COR. All diameters of a sphere are equal. PROPOSITION V. THEOREM. 586. Every section of a sphere...

Observational Geometry

William Taylor Campbell - Geometry - 1899 - 268 pages
...which is the centre. A radius of a sphere is a straight line drawn from the centre to the surface. A diameter of a sphere is a straight line drawn through the centre and bounded at each end by the surface. Thus a diameter is equal to two radii. All the radii...

Elements of Plane and Solid Geometry

Alan Sanders - Geometry - 1903 - 396 pages
...within called the center. A radius of a sphere is a straight line drawn from the center to the surface. A diameter of a sphere is a straight line drawn through the center and terminating in the surface. A line or a plane is tangent to a sphere if it has one point and only one...