Measure the length and width of the rectangle

Oct 13, 2025 by windailys.com 107 views

Introduction

In mathematics, the area of a rectangle is a fundamental concept that is used to calculate the amount of space inside a rectangle. It is an essential skill to learn, especially in geometry and measurement. In this article, we will explore how to calculate the area of a rectangle using a simple formula and provide a step-by-step guide on how to do it.

What is the Area of a Rectangle?

The area of a rectangle is defined as the product of its length and width. It is denoted by the symbol "A" and is measured in square units, such as square centimeters (cm²) or square meters (m²). The formula for calculating the area of a rectangle is:

A = length × width

Calculating the Area of a Rectangle with a Length of 3.6 Centimeters and a Width of 4.7 Centimeters

To calculate the area of a rectangle with a length of 3.6 centimeters and a width of 4.7 centimeters, we can use the formula above. First, we need to multiply the length and width together.

length = 3.6 cm width = 4.7 cm

A = length × width = 3.6 cm × 4.7 cm = 16.92 cm²

Step-by-Step Guide to Calculating the Area of a Rectangle

Here is a step-by-step guide on how to calculate the area of a rectangle:

Measure the length and width of the rectangle: Measure the length and width of the rectangle using a ruler or a measuring tape.
Write down the measurements: Write down the measurements of the length and width in the same units, such as centimeters or meters.
Multiply the length and width together: Multiply the length and width together to get the area of the rectangle.
Check the units: Check the units of the area to make sure they are correct. In this case, the area is measured in square centimeters (cm²).

Example Problems

Here are a few example problems to help you practice calculating the area of a rectangle:

What is the area of a rectangle with a length of 5.2 cm and a width of 3.8 cm?
What is the area of a rectangle with a length of 2.5 cm and a width of 4.9 cm?
What is the area of a rectangle with a length of 6.1 cm and a width of 3.2 cm?

Conclusion

Calculating the area of a rectangle is a simple process that involves multiplying the length and width together. By following the steps outlined in this article, you can easily calculate the area of a rectangle and apply it to real-world problems. Remember to always check the units of the area to make sure they are correct.

Answer

The correct answer is:

C. $16.92 \, \text{cm}^2$

Discussion

Q: What is the formula for calculating the area of a rectangle?

A: The formula for calculating the area of a rectangle is:

A = length × width

Q: What are the units of measurement for the area of a rectangle?

A: The units of measurement for the area of a rectangle are square units, such as square centimeters (cm²) or square meters (m²).

Q: How do I calculate the area of a rectangle with a length of 5.2 cm and a width of 3.8 cm?

A: To calculate the area of a rectangle with a length of 5.2 cm and a width of 3.8 cm, you can use the formula:

A = length × width = 5.2 cm × 3.8 cm = 19.76 cm²

Q: What is the area of a rectangle with a length of 2.5 cm and a width of 4.9 cm?

A: To calculate the area of a rectangle with a length of 2.5 cm and a width of 4.9 cm, you can use the formula:

A = length × width = 2.5 cm × 4.9 cm = 12.25 cm²

Q: How do I check the units of the area to make sure they are correct?

A: To check the units of the area, you can look at the units of the length and width measurements. If the length is measured in centimeters (cm) and the width is measured in centimeters (cm), then the area should be measured in square centimeters (cm²).

Q: What is the difference between the area of a rectangle and the perimeter of a rectangle?

A: The area of a rectangle is the amount of space inside the rectangle, while the perimeter of a rectangle is the distance around the rectangle. The formula for calculating the perimeter of a rectangle is:

P = 2 × (length + width)

Q: How do I calculate the perimeter of a rectangle with a length of 5.2 cm and a width of 3.8 cm?

A: To calculate the perimeter of a rectangle with a length of 5.2 cm and a width of 3.8 cm, you can use the formula:

P = 2 × (length + width) = 2 × (5.2 cm + 3.8 cm) = 2 × 9 cm = 18 cm

Q: What is the relationship between the area and perimeter of a rectangle?

A: The area and perimeter of a rectangle are related in that the perimeter is the distance around the rectangle, while the area is the amount of space inside the rectangle. However, the area and perimeter are not directly proportional, meaning that a change in one does not necessarily result in a proportional change in the other.

Conclusion

Additional Resources

Discussion

Do you have any questions or comments about calculating the area of a rectangle? Share your thoughts and let's discuss!