Jawabanmu

2014-06-01T14:12:30+07:00
Misal: p=4x ; l=3x ; t= 2x panjang kerangka balok = 4×(p+l+t) 180 cm = 4.(4x+3x+2x) 180=4.9x 180=36x x=180 /36 x=5 cm P=4x =4x5=20 cm L=3x=3x5=15 cm T=2x=2x5=10cm ditanya:volume balok? jawab: volume balok= p.l.t =20x15x10 =3000 cm kubik