Răspuns :
ABCD dreptunghi
AB=CD =108*3=324 cm
AD=BC= 108 cm
P ABCD = AB+BC+CD+AD = 324+108+324+108 = 648+ 216 = 864 cm
AB=CD =108*3=324 cm
AD=BC= 108 cm
P ABCD = AB+BC+CD+AD = 324+108+324+108 = 648+ 216 = 864 cm