8. Luas persegi = s x s = 8 x 8 = 64 cm^2
luas persegi panjang = luas persegi = 64
L persegi panjang = p x l
p = Luas : l
p = 64 : 4
p = 16 cm
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8. Luas persegi = s x s = 8 x 8 = 64 cm^2
luas persegi panjang = luas persegi = 64
L persegi panjang = p x l
p = Luas : l
p = 64 : 4
p = 16 cm