keliling sebidang tanah yang berebntuk persegi penjang 240m lebar tanah itu 2/3 panjang nya . hitung lah luas nya!

l = 2/3 p
l/p = 2/3
l : p = 2 : 3

K = 240
2×(p+l) = 240
p+l = 240/2
p+l = 120

l = 2/(2+3) × 120 = 2/5 × 120 = 48 m
p = 3/(2+3) ×120 = 3/5 × 120 = 72 m

Luas= 48×72 = 3.456 m^2

smg mmbantu

K = 240
2 ( p + l ) = 240
2 ( p + 2p/3 ) = 240
2 ( 5p/3 ) = 240
10p/3 = 240
10p = 720
p = 72 cm

l = 2p/3 = 2(72)/3 = 48 cm

L = p × l = 72 × 48 = 3456 cm2