GMAT Quantitative Reasoning Practice Test 6

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Question : 68 of 100
 
Marks: +1, -0
Is the intersection of the two lines: (x+y=8) and (4y−4x=16) inside the circle: x2+y2=r2 ?
(1) r=81.
(2) The center of the circle is at the coordinate (−99,−99).
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