17*20=340 ■
340 square feet
10 ft x 20 ft room = 200 square feet
15 x 20 = 300 square feet.
13 x 20 = 260 square feet (13 and 20 must be in 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.
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.
15 x 20 = 300 square feet.