Final answer:
The area of the rectangle with length and width less than 1 unit long will be less than 1 square unit.
Step-by-step explanation:
The statement that is true about the area of the rectangle with length and width less than 1 unit long is that the area of the rectangle will be less than 1 square unit.
To understand this, we can think about the concept of area. Area is the measure of the amount of space inside a shape. Since the length and width of the rectangle are both less than 1 unit long, multiplying them together will result in a product that is less than 1. Therefore, the area of the rectangle will also be less than 1 square unit.
For example, if the length of the rectangle is 0.5 units and the width is 0.3 units, the area would be 0.5 * 0.3 = 0.15 square units, which is less than 1. So, the statement that the area of the rectangle is less than 1 square unit is true.