Hart, C. A. (Clara Avis), b. 1863, Feldman, Daniel D., b. 1872 · New York, American Book Co · leaf 428
he surface is a radius;a straight line passing through thecenter and having its extremities onthe surface is a diameter. 902. From the above definitions andfrom the definition of equal figures,§ 18, it follows that: (a) All radii of the same sphere, or of equal spheres, are equal,(h) All diameters… … Ex. 1468. Find the locus of all points that are 3 inches from the sur-face of a sphere whose radius is 7 inches. Ex. 1469. The three edges of a trihedral angle pierce the surface of asphere. Find the locus of all points of the sphere that are :(a) Equidistant from the three edges of the trihedral…
Geometry, Plane · Geometry, Solid
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