Jawabanmu

2014-06-03T21:05:49+07:00
Volume = luas alas x tinggi
600 = (1/2 x diagonal 1 x diagonal 2) x 12
600 = ( 1/2 x 40 x x) x 12
600 = 20x x 12
20x = 600 : 12
20x = 50
x = 50 : 20 = 2,5
diagonal 2 = 2,5 cm

luas sisi? maksudnya luas permukaan yaa?