Jawabanmu

2014-04-14T21:43:33+07:00
Lpermukaan=(2pl)+(2pt)+2(lt)......,.... 468=(2*4a*3a)+(2*4a*2a)+(2*3a*2a)......... 468=24a^2+16a^a+12a^2...,....... 468=52a^2......... a^2=9........... a=3............ p=4a=3*3=12........ l=3a=3*3=9........ t=2a=2*3=6.........