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3 September, 13:57

The equation of a circle is (x-11) 2 + (y+15) 2=144 .

What is the circle's radius?

Enter your answer in the box.

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  1. 3 September, 15:03
    0
    The circle's radius is 12

    because 144=r^2 and the square root of 144 is 12
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