Keliling sebidang kebun 1.440 m. Perbandingan panjang dan lebar kebun tersebut 7 : 5. Berapa m² luas kebun tersebut?
rohmatgunawan20
K. kebun = 2 (p+l) 1440 = 2(7x+5x) 1440 = 2(12x) 1440 = 24x x = 60 jadi, * p = 7x *l = 5x = 7(60) = 5(60) = 420 m = 300 m L. kebun = p x l = 420 x 300 = 126000 m^2
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Ridafahmi
P + l = 1440 m : 2 = 720 m p = × 720 m = 420 m l = × 720 m = 300 m Luas = 420 × 300 m² = 126000 m²
1440 = 2(7x+5x)
1440 = 2(12x)
1440 = 24x
x = 60
jadi, * p = 7x *l = 5x
= 7(60) = 5(60)
= 420 m = 300 m
L. kebun = p x l
= 420 x 300
= 126000 m^2
p = × 720 m = 420 m
l = × 720 m = 300 m
Luas = 420 × 300 m² = 126000 m²