Question

If ∆ ABC ~∆ DEF and perimeter of ∆ ABC ∆ DEF are 30 cm and 18 cm. respectively .if BC=9cm. Then find EF​

Answer 1

Answer:

perimeter(abc)/perimeter(def) = bc/ec

30/18 = 9/EF

EF = 9 X 18/30 = 5.4cm

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