To find the length of each side of a square lot given its area, you can use the formula for the area of a square:
\[ \text{Area} = \text{side} \times \text{side} = \text{side}^2 \]
Given that the area is 2025 square feet, you can set up the equation:
\[ \text{side}^2 = 2025 \]
To find the length of each side, take the square root of both sides:
\[ \text{side} = \sqrt{2025} \]
Calculating the square root:
\[ \text{side} = 45 \text{ feet} \]
So the length of each side of the square lot is 45 feet. The correct answer is:
B. 45 feet