$71. A 1-mile race track is to be built with two straight sides of lengthl and semicircles at the ends of radius r. a. Express the area enclosed by the oval as a function of the radius r. b. Approximate the maximum amount of area needed to construct the track. basix

Algebra: Structure And Method, Book 1
(REV)00th Edition
ISBN:9780395977224
Author:Richard G. Brown, Mary P. Dolciani, Robert H. Sorgenfrey, William L. Cole
Publisher:Richard G. Brown, Mary P. Dolciani, Robert H. Sorgenfrey, William L. Cole
Chapter4: Polynomials
Section4.9: Area Problems
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$71. A 1-mile race track is to be built with two straight
sides of lengthl and semicircles at the ends of
radius r.
a. Express the area enclosed by the oval as a
function of the radius r.
b. Approximate the maximum amount of area
needed to construct the track.
basix
Transcribed Image Text:$71. A 1-mile race track is to be built with two straight sides of lengthl and semicircles at the ends of radius r. a. Express the area enclosed by the oval as a function of the radius r. b. Approximate the maximum amount of area needed to construct the track. basix
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