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

2 thoughts on “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”

1. Answer:

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2. ☁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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