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 #1
avatar+101234 
+1

We can find the radius by using the distance formula between these towo points...so we have...

 

sqrt [ (2 -1)^2 + (3 - 2)^2  ]  =  sqrt [ 1 + 1]  = sqrt (2)

 

And the area of the circle =

 

pi * (radius)^2  =

 

pi * (  sqrt (2) ) ^2  =

 

pi * 2  =

 

2 pi   units^2 

 

 

cool cool cool

 Oct 17, 2018

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