Understanding the Formula for the Area of a Rectangle

Oct 13, 2025 by windailys.com 31 views

Introduction

In mathematics, the area of a rectangle is a fundamental concept that is used to calculate the total space inside a rectangular shape. Given the dimensions of a rectangle, we can use the formula for the area of a rectangle to find the total area. In this article, we will explore how to calculate the area of a rectangular plot of grass with dimensions of $2+\sqrt{2}$ meters in width and $6+\sqrt{3}$ meters in length.

Understanding the Formula for the Area of a Rectangle

The formula for the area of a rectangle is given by:

Area = Length x Width

This formula is used to calculate the total area of a rectangle by multiplying the length and width of the rectangle.

Calculating the Area of the Rectangular Plot of Grass

To calculate the area of the rectangular plot of grass, we need to multiply the length and width of the plot. The length of the plot is given as $6+\sqrt{3}$ meters, and the width is given as $2+\sqrt{2}$ meters.

Step 1: Multiply the Length and Width

To calculate the area of the plot, we need to multiply the length and width. We can do this by multiplying the two expressions:

Area = (6+\sqrt{3})(2+\sqrt{2})

To multiply these two expressions, we need to use the distributive property of multiplication over addition. This means that we need to multiply each term in the first expression by each term in the second expression.

Step 2: Multiply Each Term

To multiply each term, we need to follow the order of operations (PEMDAS):

Multiply the terms inside the parentheses:
- $(6+\sqrt{3})(2+\sqrt{2}) = 6(2+\sqrt{2}) + \sqrt{3}(2+\sqrt{2})$
Multiply the terms inside the parentheses:
- $6(2+\sqrt{2}) = 12 + 6\sqrt{2}$
- $\sqrt{3}(2+\sqrt{2}) = 2\sqrt{3} + \sqrt{6}$
Add the terms:
- $12 + 6\sqrt{2} + 2\sqrt{3} + \sqrt{6}$

Step 3: Simplify the Expression

To simplify the expression, we need to combine like terms. We can do this by combining the terms with the same variable:

Area = 12 + 6\sqrt{2} + 2\sqrt{3} + \sqrt{6}

Conclusion

In this article, we have calculated the area of a rectangular plot of grass with dimensions of $2+\sqrt{2}$ meters in width and $6+\sqrt{3}$ meters in length. We used the formula for the area of a rectangle to calculate the total area of the plot. The area of the plot is given by the expression:

Area = 12 + 6\sqrt{2} + 2\sqrt{3} + \sqrt{6}

This expression represents the total area of the rectangular plot of grass.

Final Answer

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

A: The formula for the area of a rectangle is given by:

Area = Length x Width

This formula is used to calculate the total area of a rectangle by multiplying the length and width of the rectangle.

Q: How do I calculate the area of a rectangular plot of grass with dimensions of $2+\sqrt{2}$ meters in width and $6+\sqrt{3}$ meters in length?

A: To calculate the area of the rectangular plot of grass, you need to multiply the length and width of the plot. The length of the plot is given as $6+\sqrt{3}$ meters, and the width is given as $2+\sqrt{2}$ meters.

Step 1: Multiply the Length and Width

To calculate the area of the plot, you need to multiply the length and width. You can do this by multiplying the two expressions:

Area = (6+\sqrt{3})(2+\sqrt{2})

To multiply these two expressions, you need to use the distributive property of multiplication over addition. This means that you need to multiply each term in the first expression by each term in the second expression.

Step 2: Multiply Each Term

To multiply each term, you need to follow the order of operations (PEMDAS):

Multiply the terms inside the parentheses:
- $(6+\sqrt{3})(2+\sqrt{2}) = 6(2+\sqrt{2}) + \sqrt{3}(2+\sqrt{2})$
Multiply the terms inside the parentheses:
- $6(2+\sqrt{2}) = 12 + 6\sqrt{2}$
- $\sqrt{3}(2+\sqrt{2}) = 2\sqrt{3} + \sqrt{6}$
Add the terms:
- $12 + 6\sqrt{2} + 2\sqrt{3} + \sqrt{6}$

Step 3: Simplify the Expression

To simplify the expression, you need to combine like terms. You can do this by combining the terms with the same variable:

Area = 12 + 6\sqrt{2} + 2\sqrt{3} + \sqrt{6}

Q: What is the final answer for the area of the rectangular plot of grass?

A: The final answer for the area of the rectangular plot of grass is:

Area = 12 + 6\sqrt{2} + 2\sqrt{3} + \sqrt{6}

Q: How do I use the formula for the area of a rectangle to calculate the area of a rectangular plot of grass?

A: To use the formula for the area of a rectangle to calculate the area of a rectangular plot of grass, you need to follow these steps:

Identify the length and width of the plot.
Multiply the length and width using the distributive property of multiplication over addition.
Simplify the expression by combining like terms.
The final answer is the simplified expression.

Q: What are some common mistakes to avoid when calculating the area of a rectangular plot of grass?

A: Some common mistakes to avoid when calculating the area of a rectangular plot of grass include:

Not using the distributive property of multiplication over addition.
Not simplifying the expression by combining like terms.
Not following the order of operations (PEMDAS).

Q: How do I check my work when calculating the area of a rectangular plot of grass?

A: To check your work when calculating the area of a rectangular plot of grass, you can:

Use a calculator to check the calculations.
Simplify the expression by combining like terms.
Check the final answer by plugging it back into the original equation.

Conclusion

In this article, we have answered some frequently asked questions about calculating the area of a rectangular plot of grass. We have provided step-by-step instructions on how to calculate the area of a rectangular plot of grass and have highlighted some common mistakes to avoid. We have also provided tips on how to check your work when calculating the area of a rectangular plot of grass.