6. MGSE9-12G.SRT.5 If AABC-ADEF, AB = 4.5 cm, BC = 6 cm, and EF = 3 cm, what is the length of DE? 3cm DA /4.5cm 6cm A. 2 cm B. 2.25 cm C. 3 cm D. 3.5 cm

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