Point B is the image of point A under a dilation with center O. If AB = 30, and the scale factor of the dilation is 5, then what is OA?
Well the length of OA multiplied by 5 gives 30, because the scale factor is 5, so \(5x=30\), where x = length of OA
\(x = 6\), so OA is 6 units
Answer: 6 units
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