What is the area of a rectangle with a length of 5 cm and a width of 4 cm?

What is the area of a rectangle with a length of 5 cm and a width of 4 cm?

• A. 15 cm²
• B. 20 cm²
• C. 25 cm²
• D. 30 cm²

Answer: (B)

To find the area of a rectangle, you use the formula: Area = Length × Width In this case, the length of the rectangle is 5 cm and the width is 4 cm. Plugging these values into the formula gives: Area = 5 cm × 4 cm = 20 cm² This calculation demonstrates that the area of the rectangle is indeed 20 cm², making it the correct answer. Understanding the formula and performing the multiplication accurately confirms that the area is derived from the product of the rectangle's dimensions.

To find the area of a rectangle, you use the formula:

Area = Length × Width

In this case, the length of the rectangle is 5 cm and the width is 4 cm. Plugging these values into the formula gives:

Area = 5 cm × 4 cm = 20 cm²

This calculation demonstrates that the area of the rectangle is indeed 20 cm², making it the correct answer. Understanding the formula and performing the multiplication accurately confirms that the area is derived from the product of the rectangle's dimensions.