# Find the area of a circle that is NOT covered by the rectangle

Using the following image for a visual:

Is there a formula or equation I can use to find the area of the circle NOT overlapped with the rectangle (i.e. the filled in orange part)? I know all of the coordinates & sizes of both the rectangle and the circle, I'm just not sure how to apply them.

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What do u mean by having the coordinates? do u know the coordinates of the vertexes of the rectangle? do u know the coordinate of centre of the circle? –  Babak S. Jun 6 '13 at 13:14
Sorry - wasn't specific enough. Yes, I know the x,y position of the rectangle, and the height/width. I also know the diameter, radius, and center of the circle. I can post them if you'd like, but I didn't want to seem like I'm trying to have someone solve it for me :) –  lhan Jun 6 '13 at 13:15
Is it enough to do it when one side of the rectangle lies along the diameter of the circle, or could the rectangle and circle be placed in any way? –  in_wolframAlpha_we_trust Jun 6 '13 at 13:15
they could be placed in any way –  lhan Jun 6 '13 at 13:17