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A sector of a circle is shown below.  The sector has an area of $60 \pi.$  What is the radius of the circle?

 

 Dec 22, 2023
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The area is 1/4 of the circle's total area

 

60pi =   (1/4) pi r^2           divide out pi      multipy through by 4

 

240  =  r^2

 

sqrt (240) =  r   = 4sqrt (15)

 

cool cool cool

 Dec 22, 2023

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