Respuesta :
Please see attached diagram
We have square ABCD
Since ABCD is a square, all lines are of equal length
Therefore, lines AB, BC, CD and AD are 12m in length
If we draw a line from A to D, ACD forms a right angled triangle
The line AD is the hypotenuse of the right angled triangle ACD
Therefore, AC^2 + CD^2 = AD^2 (Pythagoras theorem)
AD^2 = 12^2 + 12^2
AD^2 = 144 + 144
AD^2 = 288
AD = 16.97
Therefore, the distance between A and D is 16.97m

Answer:
The distance between A and D will be 16.97m.
Explanation:
The identical objects are placed on the corners of the squre.
The corners can be designated as A, B, C and D.
The distance between A to B and B to D and C to D is equal and is 12m.
But the distance between A to D and C and B will be equal and different from 12m.
For measuring that distance, sketch a line between A and D.
The squre will be divided into two right angled triangle.
According to the Pythagoras theorem:
AD2 = AC2 + CD2
√AD2 = √(AC2 + CD2)
AD = √{(12)2 + (12)2)
AD = √144 +144
AD = √288
AD = 16.97m.
Hence the distance between A and D will be 16.97m.