Length times width will give you area. So this comes out to 400 square feet.
800 square feet (40 x 20 = 800).
If the numbers are in feet then 86 times 20 = 1720 square feet
20 X 16 = 320, 320 square feet
If the given dimensions are in feet then 24 times 20 = 480 square feet
= 20 sq feet
400 square feet
20 x 20 = 400 square feet.
800 square feet (40 x 20 = 800).
2.78 square feet.
Well, darling, 20' x 60' equals 1200 square feet. So if you're looking to cover that area with some fabulous carpet or paint, you better make sure you have enough square footage to go around. Math may not be glamorous, but it sure does the trick when it comes to calculating space.
13 x 20 = 260 square feet (13 and 20 must be in feet)
20 x 19 = 380 square feet.
12 x 20 = 240 square feet.
13 x 20 = 260 square feet.
400 square feet.
400 square feet (20 x 20 = 400)
20' x 30' = 600 square feet.