Answer:
The Length of side of park is 20 meter.
Explanation:
Given:
Shape of a Park is SQUARE
Area of a square park = 400 sqm
To Find:
The length of side of park = side = ?
Solution:
We know For a SQUARE
All the sides are equal
And Area of a square is given as

Substituting the given values we get

The Length of side of park is 20 meter.