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Mathematics 11 Online
OpenStudy (anonymous):

∆ABC and ∆PQR are similar. ∆ABC is dilated by a scale factor of 1.25 and rotated 45° counterclockwise about point B to form ∆PQR. The side lengths of ∆ABC are AB ¯ ¯ ¯ ¯ ¯ , 5 units; BC ¯ ¯ ¯ ¯ ¯ , 4.2 units; and AC ¯ ¯ ¯ ¯ ¯ , 4 units. Match each side of ∆PQR to its length.

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