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What is the area of the portion of the circle defined by \(x^2-12x+y^2=28\) that lies above the \(x\)-axis and to the right of the line \(y=6-x\)?

 Jul 21, 2020
 #1
avatar+37146 
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This is a circle centered at 6,0   with aradius of 8

The line goes right through the center ...and has a slope of -1   

     so it forms a 135o angle with the x axis

Total area = pi 8^2

    for the 135 degree portion    135/360 * pi * 82 = 75.4  units2

 

Here  is a picture:

https://www.desmos.com/calculator/kusprk1stg

 Jul 21, 2020

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