Jawabanmu

2014-06-08T13:19:55+07:00
V =  Lalas x t
    = (14+6) :2 x 3 x 15
    = 20:2 x3 x 15
    = 10 x 45 = 450 cm3

maaf kl salah ...semoga membantu...
2014-06-08T13:21:42+07:00
Volume prisma = luas alas x tinggi 
volume prisma = ((6+14)x3/2) x 15
volume prisma = (20x3/2) x 15
volume prisma = 30x15
volume prisma = 450 cm³
{semoga membantu :) } :D