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
...(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
![d=30√(2)](https://img.qammunity.org/2022/formulas/mathematics/high-school/vbz7keom7yvgl1wt15oi3tvenrbq9702of.png)
The measure of the diagonal path is
ft.
Therefore, the correct option is D.