14 ft
The diagonal of a 36 x 36 foot square is 50.91 feet.
The diagonal is 1.414 feet.
A decimal is simply a number in base 10. It has no direct relevance to the area measurement of a square foot.
Without a second measurement of width, there is no way of knowing. Linear is length and square foot is area. You have to know length and width to figure it. 30 linear feet 1 foot wide would be 30 square feet.
You've set up the exact question yourself, multiply 30 by 40. Square feet implies that you have multiplied a foot measurement by a foot measurement, so that should clue you in as to what to do. The answer is 1200.
The diagonal of a 36 x 36 foot square is 50.91 feet.
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.
The diagonal of a 5 foot square is about 7.07 feet.
using pythagorous 282 + 642 = 4880 square root = 69.856997 69.856997
The diagonal is 1.414 feet.
The diagonal is ~5.656 feet.
Using Pythagoras' theorem it works out as 4 times the square root of 13 which is about 14.422 to 3 decimal places
The diagonal dimension is 11.31 feet.
The diagonal length of a square with a 900 square foot area is: 42.43 feet.
Diagonal = 18*sqrt(2) = 18*1.414214 = 25.45584 feet
100sqft
Not possible to answer - a cubic foot is a measurement of volume, a square mile is a measurement of area!