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OpenStudy (anonymous):
Triangle ABC is similar to triangle DEF and has a ratio of similarity of 6:1. If side ED measures 12 mm, how long is side BA?
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OpenStudy (anonymous):
\[ \frac {BA}{DE}=6 \] Can you finish it from here?
OpenStudy (anonymous):
\[ BA = 6 DE=6(12)=72 \]
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