Just multiply the two together. This would give you 400 square feet.
400 (20x20) square inches is 2.78 square feet.
If that is 20ft by 20ft then there are 400 square feet
20x20 = 400 2x4= 8 400/8= 50 needed
10,800 square feet.
A square yard is 3 feet by 3 feet, 9 square feet in total. Therefore 2 square yards is equal to 18 square feet.
400 (20x20) square inches is 2.78 square feet.
Oh, dude, you're hitting me with the math questions now? Okay, let me break it down for you. So, 20 inches is like 1.67 feet (because 12 inches make a foot, remember?). When you multiply 1.67 by itself (for both sides of the square), you get around 2.78 square feet in a 20x20 inches square. So, there you have it, approximately 2.78 square feet.
400 square feet (20 x 20 = 400)
If that is 20ft by 20ft then there are 400 square feet
400 square feet. To calculate square feet simply multiply length by width - the result is the area in square feet.
40
Assuming your measurement is in feet - 400 square feet of timer.
A typical 2 car garage is 20x20 which equals 400 square feet
Well honey, a 20x20 area equals 400 square feet. A sheet of 4x8 plywood covers 32 square feet. So, you'll need 13 sheets of plywood to cover that 20x20 space. Math doesn't lie, darling.
20 x 20 = 400 The room has 400 square feet on the floor, 400 square feet on the ceiling, and (80 x height of the room) square feet on the walls.
1070 square feet is 154080 square inches. (1 square foot is 12x12 or 144 square inches.)a 20x20 inch tile is 400 square inches.So the question could be restated as "how many 400 square inch tiles does it take to cover 154080 square inches?"154080 / 400 = 385.2
No one answer, since it depends on the shape of the 400 square foot figure. If it is a square 20x20, then the diagonal is about 28.25 ft.