
Circular Railroad Curves In the United States, circular railroad curves are designated by the degree of curvature, the central
(a) What is the radius of the curve?
(b) What is the length of the arc determined by the 100-ft chord?
(c) What is the area of the portion of the

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Trigonometry, Books a la Carte Edition plus MyLab Math with Pearson eText -- Access Card Package (11th Edition)
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