If \( \triangle \mathrm{ABC} \) is similar to \( \triangle \mathrm{DEF}^{-} \)such that \( \oper... VIDEO
If \( \triangle \mathrm{ABC} \) is similar to \( \triangle \mathrm{DEF}^{-} \)such that \( \operatorname{ar}(\triangle \mathrm{DEF})=64 \mathrm{~cm}^{2}, \mathrm{DE}=5.1 \mathrm{~cm} \) and area of \( \triangle \mathrm{ABC}=9 \mathrm{~cm}^{2} \). Determine the length of \( \mathrm{AB} \).
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