Use Pythagoras:
Diagonal² = √(2 × sidelength²)
→ diagonal = side_length × √2
→ diagonal = 12 × √2 ≈ 17.0 units
Use Pythagorean theorem (a2 + b2 = c2). The diagonal measurement is just under 17.122 + 122 = c2144 + 144 = c2288 = c2c = SQRT288 = 16.9705627484771
A 12" x 12" square has a diagonal measurement of: 16.97 inches.
7.07107 (rounded)
A square covering 320 acres has a diagonal measurement of 5,280 feet or one mile.
18 ft Diagonal of a square is the square root of 2, times the side.
The diagonal is ~16.97 units.
Use Pythagorean theorem (a2 + b2 = c2). The diagonal measurement is just under 17.122 + 122 = c2144 + 144 = c2288 = c2c = SQRT288 = 16.9705627484771
The diagonal measurement of an 8 ft square is: 11.31 feet.
The diagonal measurement of an 18 x 18 square is: 25.46 units.
A 12" x 12" square has a diagonal measurement of: 16.97 inches.
The diagonal length is about 20.59
The square has a diagonal measurement of: 1.13 km
I assume that you refer to a 12 ft x 12 ft 8 in square. The length of the diagonal is determined easily suing Pythororas's therem: Diagonal = sqrt[122 + (128/12)2] feet = sqrt(304.4... ) ft = 17.448 ft approx.
7.07107 (rounded)
A square covering 320 acres has a diagonal measurement of 5,280 feet or one mile.
18 ft Diagonal of a square is the square root of 2, times the side.
D = 18.385 units.