200 square feet
20 X 16 = 320, 320 square feet
17 x 20 = 340 square feet
There are: 20 times 9 = 180 square feet
20 X 30 = 600 square feet.
A room measuring 20' x 20' = 400 square feet
400 square feet.
A simple rectangular room 20 feet by 18 feet has 360 square feet.
400 square feet, at the school I went to.
200 square feet
17*20=340 ■
240 square feet.
280 square feet.
340 square feet
20 ft x 20 ft = 400 square ft
10 ft x 20 ft room = 200 square feet
360.