124..... 20 twice + 40 twice + 4 for the corners.... why is this difficult?
300
its 10 feet-20feet
400 ft2
well one container is 20feet long and the other container is 40 feet long. the difference is 20feet. 40ft-20ft = 20ft
About 28.28 feet.
About 288.17 square feet.
320 square feet (16 x 20 = 320).
0.0054542 cubic feet.
20*5 = 100 square feet.
1yard equals 3 feet
107,720 gallons.
224