tolong beserta cara
Panjang = 13 cm
Luas = 520 cm²
Cari Lebar Persegi Panjang :
L = p x l
520 = 13 x l
l = 520 / 13
l = 40 cm
Cari Keliling Persegi Panjang :
K = 2 (p + l)
K = 2 (13 + 40)
K = 2 (53)
K = 106 cm
(Jawaban B)
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