ਜੇਕਰ ਸਮਰੂਪ ਤ੍ਰਿਭੁਜਾਂ ABC ਅਤੇ DEF ਵਿੱਚ AB = 4 cm, DE = 6 cm, EF = 9 cm ਅਤੇ FD = 12 cm ਹੈ ,ਤਾਂ ∆ABC ਦਾ ਪਰਿਮਾਪ ਪਤਾ ਕਰੋ। If ΔABC ~ ΔDEF, AB = 4 cm, DE = 6 cm, EF = 9 cm and FD = 12 cm, find the perimeter of ∆ABC. अगर समरूप त्रिभुजों ABC और DEF में AB = 4 cm, DE = 6 cm, EF = 9 cm और FD = 12 cm है तो ∆ABC का परिमाप पता करें। *
(A) 18 cm
(B) 20 cm
(C) 21 cm
(D) 22 cm
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(B) 20 cm....................
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English please....................................
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