A rectangle has length $$L$$ and width $$W$$. The enclosed surface is measured in square units.

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The **area** of a rectangle measures the amount of surface it encloses, expressed in square units. It equals the product of the length and the width:

$$A = L \cdot W$$

For example, a rectangular rug that is $$2$$ feet long and $$3$$ feet wide covers $$2 \cdot 3 = 6$$ square feet — exactly the number of unit squares that tile the surface. When the area and one dimension are known, the missing dimension can be found by dividing the area by the known side length.

Area of a Rectangle

Complete the rectangle area formula: $$A = L \cdot$$ _____

Order the steps for finding the area of a rectangle.

Match each rectangle term with its meaning.

Which formula gives the area of a rectangle?

Which units are used to measure the area of a rectangle?

A rectangle has area $$A$$ and length $$L$$. How do you find its width?

Question:
Write the formula for the area of a rectangle. State what each variable represents.

Sample answer:
$$A = L \cdot W$$, where $$A$$ is the area, $$L$$ is the length, and $$W$$ is the width.

Key points:
- Uses $$A = L \cdot W$$
- Identifies $$A$$ as area
- Identifies $$L$$ as length
- Identifies $$W$$ as width

Feedback:
The area of a rectangle is the product of its length and width.

Write the formula for the area of a rectangle. State what each variable represents.

Question:
What is the area of a rectangle? Give its formula and the type of units used.

Sample answer:
Area is the amount of surface inside a rectangle. The formula is $$A=L\cdot W$$, where $$L$$ is length and $$W$$ is width. Area is measured in square units.

Key points:
- Area measures the surface inside a rectangle.
- The formula is $$A=L\cdot W$$.
- Area is reported in square units.

Rubric:
The response correctly defines area, gives the rectangle area formula, and states that area uses square units.

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