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Panjang = 5 ÷ 8 × 64 = 40 ÷ 2 = 20
Lebar = 3 ÷ 8 × 64 = 24 ÷ 2 = 12
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*dibagi 2 karena pada persegi panjang terdapat 2 sisi panjang dan 2 sisi lebar
64 = 2(5x+3x)
64 = 10x + 6x
64 = 16x
x = 4
panjang = 4 x 5 = 20 cm
lebar = 4 x 3 = 12 cm
64 = 2(5x+3x)
64 = 10x + 6x
64 = 16x
x = 4
panjang = 4 x 5 = 20 cm
lebar = 4 x 3 = 12 cm