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Points A (-1, 2) and B (3, 12)are the endpoints of a diameter of a circle graphed in a coordinate plane. How many square units are in the area of the circle? Express your answer in terms of .

 May 27, 2021
 #1
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The  center   of   the  circle  is  the  midpoint    =   (  [ 3 -1 ]  / 2  ,  [ 12  + 2 ]  / 2 )   =  (1, 7)

 

The  square  of  the  radius   =   ( 3 -  1)^2  +  (  12 - 7)^2   =  2^2  + 5^2   =  29

 

The  area  of  the  circle   =   29  pi  units^2  

 

 

cool cool cool

 May 27, 2021

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