13.378 square meters.
Just multiply the 21 by the 12 and you have 252 square feet.
9 multiplied by 40 is 360. So the answer is 360 square feet.
measure the width and lengh in feet and then multiply to get your answer eg. 3feet by 3feet is 9feet square
4 yards. If you mean 12 square feet, the answer is 1.33 square yards.
166
13.38 square meters.
12 feet x 16 feet = 27,648 square inches
9'10" * 30' = 910/12 * 30 = 295 square feet
Total square feet: 180.0 (15 x 12 = 180)
You have to multiply the two dimensions to get the area. In this case the answer will be 117 square feet.
8.92 sq metres (to 2 dp)