If the exact area of the sector determined by a 20°arc is 9/2πcm². Find the length of the radius of the circle.

Elementary Geometry For College Students, 7e
7th Edition
ISBN:9781337614085
Author:Alexander, Daniel C.; Koeberlein, Geralyn M.
Publisher:Alexander, Daniel C.; Koeberlein, Geralyn M.
Chapter8: Areas Of Polygons And Circles
Section8.4: Cicumference And Area Of A Cicle
Problem 16E: Use your calculator to find, to two decimal places the lengths of the radius and the diameter of the...
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If the exact area of the sector determined by a 20°arc is 9/2πcm².

Find the length of the radius of the circle.

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