Answer:
192.
Step-by-step explanation:
Since it is length x width x height, I would do 6 x 2 first since that's easier. So, 16 x 12 is 192.
1200 units 30 times 40 is 1200
9.16
It's hundreds so you have to move the decimal place two times
77
½ × base × height
½ × 11 × 14 = 77 units²