Different shapes have different ways of measuring space inside them. This is why their area units are not the same. Let’s break it down simply:

• Squares: To find the area, you multiply one side by itself. So, it's side × side, or $s^2$.
• Rectangles: Here, you multiply the length by the width. That’s area = length × width, or $l \times w$.
• Triangles: For triangles, the area is half of the base times the height. So, it's 1/2 × base × height, or $\frac{1}{2}bh$.
• Circles: In circles, you multiply the number π (pi) by the radius squared. So, the area is π × radius², or $πr^2$.

Knowing how to find the area of these shapes is important. It helps us in everyday situations, like figuring out how much paint we need for a wall or planning how to layout a garden.

Understanding area can make our lives a lot easier!