The radius of a circle is increasing at a rate of 5 ft/min. At what rate is its area changing when the radius is 4 ft? (Recall that for a circle, A = ?r2.)
The radius of a circle is increasing at a rate of 5 ft/min. At what rate is its area changing when the radius is 4 ft? (Recall that for a circle, A = ?r2.)
Elementary Geometry for College Students
6th Edition
ISBN:9781285195698
Author:Daniel C. Alexander, Geralyn M. Koeberlein
Publisher:Daniel C. Alexander, Geralyn M. Koeberlein
Chapter8: Areas Of Polygons And Circles
Section8.4: Cicumference And Area Of A Cicle
Problem 12E: Use your calculator value of to find the approximate area of a circle with radius length 12.38 in.
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The radius of a circle is increasing at a rate of 5 ft/min. At what rate is its area changing when the radius is 4 ft? (Recall that for a circle, A = ?r2.)
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