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4(2x +1) = 44
2x + 1 = 44/4 = 11
2x = 11 - 1 = 10
x = 5
pnjang sisi persegi = 44/4 = 11
Luas persegi = s² = 11² = 121
keliling persegi= 44cm
Dit: Nilai x
Jwb: panjang sisi= keliling : 4 » 44cm : 4= 11cm
Nilai x= 2x + 1= 11cm
= 2x= 11cm - 1cm » 2x=10cm
= x = 10/2 » x= 5cm
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