The circle E and circle F are similar to circle A
Note that all circles are similar to each other. Since we are given the measure of the diameters and chords, we can use the radius to determine the similar circles
Given that the radius of circle A is 6 units
Since d = 2r
12 = 2r
r = 6units
Hence circles E and F have the same radius as circle A. Hence circle E
and circle F are similar to circle A
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