Is similar to with the correspondence , ,

MATHEMATICS · Single correct · GCSE · Mathematics · Ratio and Proportion · Ratio and Proportion

Problem

ΔABC\Delta ABC is similar to ΔDEF\Delta DEF with the correspondence A↔DA \leftrightarrow D, B↔EB \leftrightarrow E, C↔FC \leftrightarrow F. If AB=3 cmAB = 3\,\text{cm}, BC=5 cmBC = 5\,\text{cm}, and DE=4.5 cmDE = 4.5\,\text{cm}, calculate EFEF. (a) 5 cm5\,\text{cm} (b) 7.5 cm7.5\,\text{cm} (c) 3.33 cm3.33\,\text{cm} (d) 11.25 cm11.25\,\text{cm}

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