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= 12²
= 144 cm²
luas persegi panjang = pl
= 8.l
144 = 8l
l = 144/8
l = 18 cm
Keliling persegi panjang : 2p + 2l
= 2(8) + 2(18)
= 16 + 36
= 52 cm
Keliling persegi = 4s
= 4(12)
= 48 cm
Kpp : Kp = 52 : 28
= 13 : 7
Keliling Persegi: 48
Perbandingan keliling Persegi Panjang : Persegi
5:6