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need help with probability

 

 Jul 23, 2020
 #1
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Usng the formula  Area  =  pi · radius2

 

1)  Find the area of the inner-most circle (radius = 1)

 

2)  Find the area of the target, which is outer-most circle (radius = 3)

 

3)  Divide the answer of step 1 by the answer of step 2.

 Jul 23, 2020

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