What is the area of a rectangle with length 7 cm and width 4 cm?

The area of a rectangle with length 7 cm and width 4 cm is 28 square centimetres.

To find the area of a rectangle, you use the formula: Area = Length × Width. In this case, the length of the rectangle is 7 cm and the width is 4 cm. By multiplying these two measurements together, you get 7 cm × 4 cm = 28 cm².

Understanding this formula is crucial for solving many geometry problems. The area represents the amount of space inside the rectangle, and it's measured in square units. Here, since the measurements are in centimetres, the area is in square centimetres (cm²).

Visualising this can also help. Imagine a rectangle divided into 1 cm by 1 cm squares. If you count all the squares inside, you would find 28 of them, confirming that the area is indeed 28 cm². This method of visualisation can be particularly useful when dealing with more complex shapes or when trying to understand the concept of area more deeply.

Remember, the formula for the area of a rectangle is straightforward but very powerful. It can be applied to any rectangle, no matter the size, as long as you know the length and the width. Practising with different measurements will help you become more comfortable and confident in using this formula.