The dimensions would be 40 feet by 40 feet.
621 square feet
To calculate the size dimension in square feet, you multiply the length and width of the area in feet. For example, if you have a room that is 10 feet long and 12 feet wide, the size dimension in square feet would be 120 square feet (10 feet x 12 feet).
The diagonal dimension is 11.31 feet.
Each side is 8 feet long !
7 The dimension you provide is not a squared dimension but a linear dimension. There are no squared dimensions in a linear dimension. There are 7 linear yards in 21 linear feet, but no squared yards.
Multiply the two dimension to get area. The answer would be 2,736 square feet.
You calculate the square feet of the room/ area. A square feet is still a square feet, no matter on the dimension of the tile
Answer: 1 acre = 43,560 ft²
The area is found by multiplying the two dimension. This would be 1,600 square feet.
You don't. Yard is distance (one dimension) square feet is area (two dimensions).
You need one more piece of information. One other dimension (if a rectangular area), in feet, of the area you are using/measuring. Take "the other dimension in feet" and divide it by 9. Assuming your other dimension is 12 feet, 12/9 = 1.333333, therefore in your case do this 4840/1.333333 = 3630 lineal feet. Warning, this only works on rectangular areas.