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Verified answer
Bab Bangun DatarMatematika SMP Kelas VII
jajar genjang
luas = QN x LM = 288
24 x LM = 288
LM = 288 : 24
LM = 12 cm
keliling = 2 x (LM + MN)
Keliling = 2 x (12 + 28)
Keliling = 2 x 40
keliling = 80 cm