If ΔABC ~ ΔDEF and the perimeters of ΔABC and ΔDEF are 30 cm and 18 cm respectively. If BC = 9 cm, then find EF. help plz solving needed
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☁Answer:-
=> 5.4cm
∆ABC ~ ∆DEF
Therefore,
perimeter (∆ABC)/perimeter(∆DEF)
= BC/EF
=> 30/18 = 9/EF
=> EF = 9 * 18/30
= 5.4 CM
#Hopeithelps
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