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Verified answer
✔Panjang = 3 x Lebar✔Keliling = 72 cm
Ditanya : Panjang P. Panjang?
Jawaban
K = 72 cm
2(P + l) = 72
(3l + l) = 72/2
4l = 36
l = 36/4
l = 9
Maka Panjang nya adalah :
P = 3l
P = 3x9
P = 27 cm
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