Calculate the Area of a Square with Side Length 25 Units

Area measures how much space is inside the square. When you have a 25×25 grid, you're counting 25 rows each with 25 squares, which gives you $25 \times 25 = 625$ total squares!

Area is the space inside (multiply: $L^2$), while perimeter is the distance around the outside (add: $4L$). For this square: area = 625, perimeter = 100.

Think of it as "side times side" or imagine filling the square with unit squares. A 25×25 square needs $25 \times 25 = 625$ unit squares to fill it completely!

The formula $A = L^2$ works for any side length! Whether it's 3.5, 2.7, or even fractions like $\frac{1}{2}$, just square that number.

Ask yourself: "Does this make sense?" A 25-unit square should have a large area. Since $20^2 = 400$ and $30^2 = 900$, an answer of 625 fits perfectly between them!