Given:
The side of the square garden is 30ft.
To find:
The length of the diagonal of the square garden.
Solution:
We know that, the length of the diagonal of a square is
[tex]d=a\sqrt{2}[/tex] ...(i)
Where, a is the the side of the square.
We have,
Side of the square garden = 30 ft.
Putting a=30 in (i), we get
[tex]d=30\sqrt{2}[/tex]
The measure of the diagonal path is [tex]30\sqrt{2}[/tex] ft.
Therefore, the correct option is D.
