 | William Hawney - Arithmetic - 1721 - 376 pages
...•whofe perpendicular Axis is the fladius of the Sphere, and its B.ifs я Plain, equal ю all the Surfare of it. For you may conceive the Sphere to confift of an infinite Number of Cones, whofe Hafts, taken all together, compofe the Surface, and whofe Vertexes meet all together in the Centre... | |
 | William Hawney - Arithmetic - 1751 - 370 pages
...Cone, v. hofc perpendicular Axis is the Radius of the Sphere, and its Bafe a Plain, equal to all the Surface of it. For you may conceive the Sphere to...Surface, and' whofe Vertexes meet all together in the Centre of the Sphere : Hence the Solidity of the Sphere will be gain'd, by multiplying its Surface... | |
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Cone, v. hofc perpendicular Axis is the Radius of the Sphere, and its Bafe a Plain, equal to all the Surface of it. For you may conceive the Sphere to confift of an infinite Number of Cones, whofe Bafes, taken all together, compofe the Surface, and... 