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Verified answer
Bab Bangun DatarMatematika SMP Kelas VII
Persegi panjang
p = 6 + l
Keliling = 28
2 x (p + l) = 28
6 + l + l = 28 : 2
2l = 14 - 6
l = 8/2
l = 4 m
p = 6 + 4
= 10 m
luas = p x l
= 10 x 4
= 40 m²
GBu
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