1.

The perimeters of ΔABC and ΔDEF are 43.2 cm and 28.8 cm, respectively, and ΔABC ~ ΔDEF. If DE = 12 cm, then the length of AB is:

A. 18 cm
B. 20 cm
C. 18.4 cm
D. 20.4 cm
Answer» B. 20 cm


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