Jawabanmu

2014-04-16T21:27:29+07:00
10 cm
soalnya 8x6 :2 = Luas alas = 24
v. prisma = La x t
240 = 24.x
x=240 :24 = 10 cm
2014-04-16T21:29:00+07:00
Luas alas = 8 x 6 /2 = 24 cm²
Volume prisma = La. t
  240 cm³         = 24. t
                   t   = 240/24 = 10 cm