All measurements of circle a can be determined using which of the following? the location of the center of circle a on the coordinate plane the scale factor between circle a and a larger circle the scale factor between circle a and a smaller circle the radius of circle a

The measurements of a circle are radius, diameter and circumference.

Given any of them, you can determine the other two.

Then, the answer is The radius of circle A.

Note that the position of the circle is not a measurement of the circle. If you want to know circle's position, you need the center of the circle.  

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The answer is 4 points