Answer:
432 square meters
Step-by-step explanation:
The lateral area means the area that's not the bases. We have to add up all the lateral faces.
2(big rectangle area) + 2(small rectangle area) = total lateral area
- Big rectangle area: A = lw = 8*18 = 144 square meters
- Small rectangle area: A = lw = 18*4 = 72 square meters
2(144) + 2(72) = total lateral area
total lateral area = 432 square meters
