B is an enlargement of A. The lengths have doubled, but the angles have stayed the same. Remember: For any pair of similar figures, corresponding sides are in the same ratio, and corresponding angles ...
XY is on the bigger figure, therefore we will be using an enlargement scale factor. \(SF_{Enlargement} = \frac{Big}{Small} = \frac{9}{8}\) Therefore \(XY\) is \(\frac ...
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