Elementary Geometry For College Students, 7e
7th Edition
ISBN:9781337614085
Author:Alexander, Daniel C.; Koeberlein, Geralyn M.
Publisher:Alexander, Daniel C.; Koeberlein, Geralyn M.
Chapter9: Surfaces And Solids
Section9.4: Polyhedrons And Spheres
Problem 48E: Sketch the solid that results when the given circle of radius length 1 unit is revolved about the...
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Prove that the radius of curvature of the Helix curve (helical spring) r(t) = (cost,sin t, t) is constant.
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Is it the same as the curvature radius of the curve XY level projection (= unit circle)?
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