Walls of two buildings on either side of a street are parallel to each othe. A ladder `5.8m` long is placed on the street such that its top just reaches the window of a building at the height of `4m`. On turning the ladder over to the other side of the street, its top touches the window of the other building at a height `4.2m`. Find the width of the street.

Explanation

To find the width of the street between the two buildings using the given information about the ladder, we can break down the problem into steps using the Pythagorean theorem.

### Step-by-Step Solution:

1. **Identify the Right Triangles**:
- When the ladder is leaning against the first building, it forms a right triangle where:
- The height (perpendicular) is 4 m (height of the window).
- The length of the ladder (hypotenuse) is 5.8 m.
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