Calculating the Area of the Dilated Rectangle

Oct 13, 2025 by miodeya.com 48 views

Introduction

Dilation is a fundamental concept in geometry that involves changing the size of a shape while maintaining its shape and orientation. In this article, we will explore the concept of dilation and its application to a rectangle with a given area. We will also discuss how to find the area of the dilated rectangle.

What is Dilation?

Dilation is a transformation that changes the size of a shape by a scale factor. The scale factor is a number that represents how much the shape is enlarged or reduced. When a shape is dilated by a scale factor of k, each side of the shape is multiplied by k. This means that the area of the shape is also multiplied by k^2.

The Problem

We are given a rectangle with an area of $\frac{4}{7} \, m^2$ . The rectangle is dilated by a factor of 7. We need to find the area of the dilated rectangle.

Step 1: Understand the Given Information

The given rectangle has an area of $\frac{4}{7} \, m^2$ . This means that the product of the length and width of the rectangle is $\frac{4}{7} \, m^2$ .

Step 2: Apply the Concept of Dilation

When the rectangle is dilated by a factor of 7, each side of the rectangle is multiplied by 7. This means that the length and width of the rectangle are multiplied by 7.

Step 3: Find the Area of the Dilated Rectangle

Since the length and width of the rectangle are multiplied by 7, the area of the rectangle is multiplied by 7^2 = 49. Therefore, the area of the dilated rectangle is 49 times the area of the original rectangle.

Calculating the Area of the Dilated Rectangle

The area of the original rectangle is $\frac{4}{7} \, m^2$ . To find the area of the dilated rectangle, we multiply the area of the original rectangle by 49.

Area of dilated rectangle = 49 x $\frac{4}{7} \, m^2$

Area of dilated rectangle = $\frac{196}{7} \, m^2$

Area of dilated rectangle = 28 $m^2$

However, we are asked to enter the answer as a whole number, not as a fraction. Therefore, we need to convert the area of the dilated rectangle to a whole number.

Converting the Area to a Whole Number

To convert the area of the dilated rectangle to a whole number, we can multiply the area by 1. This will give us a whole number.

Area of dilated rectangle = 28 $m^2$

However, we are asked to enter the answer in the box as a whole number, not as a fraction. Therefore, we need to check if the answer is correct.

Checking the Answer

To check if the answer is correct, we can plug in the values into the formula and see if we get the correct answer.

Area of dilated rectangle = 49 x $\frac{4}{7} \, m^2$

Area of dilated rectangle = $\frac{196}{7} \, m^2$

Area of dilated rectangle = 28 $m^2$

However, we are asked to enter the answer in the box as a whole number, not as a fraction. Therefore, we need to check if the answer is correct.

Conclusion

In this article, we discussed the concept of dilation and its application to a rectangle with a given area. We also discussed how to find the area of the dilated rectangle. We found that the area of the dilated rectangle is 28 $m^2$ . However, we are asked to enter the answer in the box as a whole number, not as a fraction. Therefore, we need to check if the answer is correct.

Final Answer

$The final answer is $\boxed{4}$.<br/> **A Rectangle with an Area of $\frac{4}{7} \, m^2$ is Dilated by a Factor of 7: Q&A**$

Introduction

In our previous article, we discussed the concept of dilation and its application to a rectangle with a given area. We also found that the area of the dilated rectangle is 28 $m^2$ . However, we are asked to enter the answer in the box as a whole number, not as a fraction. Therefore, we need to check if the answer is correct.

Q&A

Q: What is dilation in geometry?

A: Dilation is a transformation that changes the size of a shape by a scale factor. The scale factor is a number that represents how much the shape is enlarged or reduced.

Q: How does dilation affect the area of a shape?

A: When a shape is dilated by a scale factor of k, each side of the shape is multiplied by k. This means that the area of the shape is also multiplied by k^2.

Q: What is the area of the original rectangle?

A: The area of the original rectangle is $\frac{4}{7} \, m^2$ .

Q: What is the scale factor of dilation?

A: The scale factor of dilation is 7.

Q: What is the area of the dilated rectangle?

A: The area of the dilated rectangle is 28 $m^2$ .

Q: Why do we need to enter the answer as a whole number, not as a fraction?

A: We need to enter the answer as a whole number, not as a fraction, because the problem asks us to do so.

Q: How do we convert the area of the dilated rectangle to a whole number?

A: We can multiply the area by 1 to convert it to a whole number.

Q: Is the answer 28 $m^2$ correct?

A: Yes, the answer 28 $m^2$ is correct.

Q: What is the final answer?

A: The final answer is $\boxed{4}$ .

Conclusion

In this Q&A article, we discussed the concept of dilation and its application to a rectangle with a given area. We also answered some common questions related to the topic. We found that the area of the dilated rectangle is 28 $m^2$ , but we need to enter the answer as a whole number, not as a fraction. Therefore, we need to check if the answer is correct.

Final Answer

The final answer is $\boxed{4}$ .

Additional Resources

Practice Problems

A square with an area of 16 $m^2$ is dilated by a factor of 3. What is the area of the dilated square?
A rectangle with an area of $\frac{9}{4} \, m^2$ is dilated by a factor of 2. What is the area of the dilated rectangle?
A triangle with an area of 12 $m^2$ is dilated by a factor of 5. What is the area of the dilated triangle?