Jawabanmu

2014-03-04T04:28:59+07:00
250 x 6 = 1500 250 x 4 = 1000 L = s x s = 1500 x 1000 = 1.500.000
bukannya luas segitiga a x t : 2
kok gak dibagi 2 sih
L = seteangah x a x t = setengah x 1000 x 1500 = 1500 x 500 = 750000 (?)
2014-03-04T08:19:19+07:00
Alas sbnrx = 6 cm x 250 = 1500 cm = 15 m
tggi sbnarnya = 4 x 250 = 1000 cm = 10 m
 Luas = a x t : 2 
         = 15 x 10 : 2
         = 150 : 2 = 75 m