Jawabanmu

2014-04-08T11:54:15+07:00
P:l:t= 5:3:2 volume = 810 5x.3x.2x= 810 30x^3 = 810 x^3 = 27 x= 3 luas permukaan = 2pl+2pt+2lt =2.5.3.3.3+2.5.3.2.3+2.2.3.3.3 =270+ 180+108 =558 cm^2
2014-04-08T12:00:01+07:00
p :l :t= 5:3:2
 volume = 810 5x.3x.2x
= 810 30x^3 = 810 x^3 =
 27 x= 3
luas permukaan = 2pl+2pt+2lt
=2.5.3.3.3 + 2.5.3.2.3 + 2.2.3.3.3
=270+ 180+108
=558 cm^2