transition duct is constructed from a circular sector of radius 18 in. and a central angle of 115°.  (a) What is the area of the metal used? (Round to the nearest hundredth. (b) Calculate the arc length of the sector. (Round to the nearest hundredth.) ?

Elementary Geometry For College Students, 7e
7th Edition
ISBN:9781337614085
Author:Alexander, Daniel C.; Koeberlein, Geralyn M.
Publisher:Alexander, Daniel C.; Koeberlein, Geralyn M.
ChapterP: Preliminary Concepts
SectionP.CT: Test
Problem 1CT
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A transition duct is constructed from a circular sector of radius 18 in. and a central angle of 115°. 

(a) What is the area of the metal used? (Round to the nearest hundredth.

(b) Calculate the arc length of the sector. (Round to the nearest hundredth.) ?

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