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va rog ajutatima
aflati aria totala a unui paralelipiped dreptunghic cu dimensiunile de 2cm 3cm respectiv 4 cm


Răspuns :

aria totala = aria laterala + 2Xperimetrul bazei

aria totala = (2cm+3cm)X2X4cm+2X(2cm+3cm)X2

aria totala=5cmX2X4cm+2X5cmX2

aria totala=40cm+20cm

aria totala=60cm patrati