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Geometry 12 Online
OpenStudy (anonymous):

how to prove a point is inside a circle

OpenStudy (unklerhaukus):

say your circle is (x-a)^2+(y-b)=r^2 the inside of the circle is (x-a)^2+(y-b)>r^2

OpenStudy (unklerhaukus):

the point will be inside the circle if, when you plug in the (x,y) coordinates the left handside is greater than the right handside

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