Applying the Formula to the Rug

Oct 13, 2025 by wbrum.org 133 views

Perimeter is a fundamental concept in mathematics that refers to the distance around a shape or object. It is an essential aspect of geometry and is used to calculate the total length of the boundary of a shape. In this article, we will explore the concept of perimeter and how it is calculated for different shapes, with a focus on the perimeter of a rug.

What is Perimeter?

Perimeter is the total distance around a shape or object. It is calculated by adding up the lengths of all the sides of the shape. For example, if you have a rectangle with a length of 6 yards and a width of 3 yards, the perimeter would be the total distance around the rectangle.

Calculating Perimeter

To calculate the perimeter of a shape, you need to add up the lengths of all the sides. For a rectangle, the perimeter can be calculated using the formula:

Perimeter = 2(length + width)

This formula works because a rectangle has two pairs of equal sides, so you can add the length and width together and multiply the result by 2.

Applying the Formula to the Rug

Now that we have the formula, let's apply it to the rug. The rug is 6 yards in length and 3 yards in width. To calculate the perimeter, we need to add the length and width together and multiply the result by 2.

Perimeter = 2(6 + 3) Perimeter = 2(9) Perimeter = 18

Therefore, the perimeter of the rug is 18 yards.

Evaluating the Options

Now that we have calculated the perimeter of the rug, let's evaluate the options provided.

A. $2(6 \times 3)$ This option is incorrect because it multiplies the length and width together, rather than adding them together.

B. $2(6+3)$ This option is correct because it adds the length and width together and multiplies the result by 2.

C. $2(6-3)$ This option is incorrect because it subtracts the width from the length, rather than adding them together.

D. $2(6+3)$ This option is a repeat of option B and is therefore correct.

Conclusion

In conclusion, the perimeter of a rug that is 6 yards in length and 3 yards in width can be calculated using the formula:

Perimeter = 2(length + width)

By applying this formula, we can calculate the perimeter of the rug as 18 yards. The correct option is B. $2(6+3)$ .

Frequently Asked Questions

What is perimeter? Perimeter is the total distance around a shape or object.
How is perimeter calculated? Perimeter is calculated by adding up the lengths of all the sides of a shape.
What is the formula for calculating the perimeter of a rectangle? The formula for calculating the perimeter of a rectangle is Perimeter = 2(length + width).
What is the perimeter of a rug that is 6 yards in length and 3 yards in width? The perimeter of a rug that is 6 yards in length and 3 yards in width is 18 yards.

Additional Resources

Khan Academy: Perimeter and Area
Math Open Reference: Perimeter
Wikipedia: Perimeter

References

"Geometry: A Comprehensive Introduction" by Dan Pedoe
"Mathematics for Dummies" by Mary Jane Sterling

In our previous article, we explored the concept of perimeter and how it is calculated for different shapes. In this article, we will answer some frequently asked questions about perimeter.

Q: What is perimeter?

A: Perimeter is the total distance around a shape or object. It is an essential aspect of geometry and is used to calculate the total length of the boundary of a shape.

Q: How is perimeter calculated?

A: Perimeter is calculated by adding up the lengths of all the sides of a shape. For a rectangle, the perimeter can be calculated using the formula:

Perimeter = 2(length + width)

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

A: The formula for calculating the perimeter of a rectangle is Perimeter = 2(length + width).

Q: What is the perimeter of a square with a side length of 5 yards?

A: To calculate the perimeter of a square, you need to multiply the side length by 4. Therefore, the perimeter of a square with a side length of 5 yards is:

Perimeter = 4(5) Perimeter = 20

Q: What is the perimeter of a triangle with a base of 6 yards and a height of 3 yards?

A: To calculate the perimeter of a triangle, you need to add up the lengths of all the sides. However, since we are only given the base and height, we can use the Pythagorean theorem to calculate the length of the third side.

First, we need to calculate the length of the third side using the Pythagorean theorem:

a^2 + b^2 = c^2

where a and b are the base and height, and c is the length of the third side.

6^2 + 3^2 = c^2 36 + 9 = c^2 45 = c^2

c = √45 c = 6.708

Now that we have the length of the third side, we can calculate the perimeter:

Perimeter = 6 + 3 + 6.708 Perimeter = 15.708

Q: What is the perimeter of a circle with a radius of 4 yards?

A: To calculate the perimeter of a circle, you need to use the formula:

Perimeter = 2πr

where r is the radius of the circle.

Perimeter = 2π(4) Perimeter = 8π Perimeter = 25.13

Q: Can you provide examples of real-world applications of perimeter?

A: Yes, perimeter has many real-world applications. Here are a few examples:

Building design: Architects use perimeter to calculate the total length of the boundary of a building.
Landscaping: Gardeners use perimeter to calculate the total length of the boundary of a garden or lawn.
Engineering: Engineers use perimeter to calculate the total length of the boundary of a structure or system.

Q: What are some common mistakes to avoid when calculating perimeter?

A: Here are some common mistakes to avoid when calculating perimeter:

Forgetting to add up all the sides of a shape.
Using the wrong formula for a particular shape.
Not considering the units of measurement (e.g. yards, meters, etc.).

Conclusion

In conclusion, perimeter is an essential concept in mathematics that has many real-world applications. By understanding how to calculate perimeter, you can solve a wide range of problems in geometry and beyond. We hope this Q&A article has been helpful in answering your questions about perimeter.