Answer:
108
Step-by-step explanation:
Top: A = l*w = 6*3 = 18
Left : A = l*w = 3*4 =12
Front : A = l*4 = 4*6 = 24
Bottom: A = l*w = 6*3 = 18
Back: A = l*4 = 4*6 = 24
Right: A = l*w = 3*4 =12
Total = Sum of all sides = 18+12+24+18+24+12 =108
