9. The area of the small sector is 20n ft2. What is the radius of the circle? В 720

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 16E
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9. The area of the small sector is 20 ft².
What is the radius of the circle?
11. The arc length of arc DF measures 30 m
What is the area of the circle?
B
72
A
he arc length of arc DF measures 30 m
Transcribed Image Text:9. The area of the small sector is 20 ft². What is the radius of the circle? 11. The arc length of arc DF measures 30 m What is the area of the circle? B 72 A he arc length of arc DF measures 30 m
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