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avatar+101 

The product of two inches and the circumference of a circle, in inches, is equal to the
circle's area. What is the length of the radius of the circle, in inches?

 Apr 3, 2020
 #2
avatar+252 
+2

If that is so, the 4r\(\pi\) is equal ro r^2\(\pi\) divide both sides by \(r\pi\) to get r=4

 Apr 3, 2020
 #3
avatar+111321 
+1

2  * 2pi * r   =  pi * r^2       divide  out  pi

 

4 r   =   r^2        divide  by  r  on both sides

 

4  =  r

 

 

cool cool cool

 Apr 3, 2020

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