To find the length of each side of an equilateral triangle, you can use the formula for the perimeter of an equilateral triangle, which is \( P = 3s \), where \( s \) is the length of each side.
Given that the perimeter \( P \) is 18 meters, you can set up the equation:
\[ 3s = 18 \]
Now, solve for \( s \):
\[ s = \frac{18}{3} = 6 \]
So, the length of each side of the equilateral triangle is 6 meters.