Perimeter of the Longer Sides

Oct 13, 2025 by wbrum.org 103 views

Introduction

When it comes to creating a beautiful stained glass window, one of the essential steps is to attach a lead strip around all four sides of the window. This not only provides structural support but also adds an aesthetic touch to the overall design. However, to ensure that the lead strip is sufficient, it's crucial to calculate the exact length needed. In this article, we'll explore how to calculate the length of lead stripping required for a stained glass window with dimensions of $$9 \frac{4}{5}$$ in. by $$11 \frac{21}{25}$$ in.

Understanding the Problem

To calculate the length of lead stripping needed, we need to consider the perimeter of the stained glass window. The perimeter is the distance around the outside of the window, and it's calculated by adding up the lengths of all four sides. In this case, we have a rectangular window with two longer sides and two shorter sides.

Calculating the Perimeter

To calculate the perimeter, we need to add up the lengths of all four sides. Let's start by converting the mixed numbers to improper fractions.

9 \frac{4}{5} = \frac{(9 \times 5) + 4}{5} = \frac{45 + 4}{5} = \frac{49}{5}

11 \frac{21}{25} = \frac{(11 \times 25) + 21}{25} = \frac{275 + 21}{25} = \frac{296}{25}

Now that we have the dimensions in improper fractions, we can calculate the perimeter.

Perimeter of the Longer Sides

The two longer sides have a length of $$\frac{296}{25}$$ in. each. To calculate the total length of these two sides, we multiply the length of one side by 2.

2 \times \frac{296}{25} = \frac{592}{25}

Perimeter of the Shorter Sides

The two shorter sides have a length of $$\frac{49}{5}$$ in. each. To calculate the total length of these two sides, we multiply the length of one side by 2.

2 \times \frac{49}{5} = \frac{98}{5}

Total Perimeter

Now that we have the lengths of the longer and shorter sides, we can calculate the total perimeter by adding up the lengths of all four sides.

\text{Total Perimeter} = \frac{592}{25} + \frac{98}{5}

To add these fractions, we need to find a common denominator. The least common multiple of 25 and 5 is 25.

\frac{592}{25} + \frac{98}{5} = \frac{592}{25} + \frac{490}{25}

Now that we have a common denominator, we can add the fractions.

\frac{592}{25} + \frac{490}{25} = \frac{1082}{25}

Converting the Improper Fraction to a Mixed Number

To make it easier to understand the result, we can convert the improper fraction to a mixed number.

\frac{1082}{25} = 43 \frac{2}{25}

Conclusion

In conclusion, to calculate the length of lead stripping needed for a stained glass window with dimensions of $$9 \frac{4}{5}$$ in. by $$11 \frac{21}{25}$$ in., we need to calculate the perimeter of the window. By converting the mixed numbers to improper fractions, we can calculate the perimeter of the longer and shorter sides and add them up to get the total perimeter. The result is $$43 \frac{2}{25}$$ in., which is the length of lead stripping needed.

Final Answer

$The final answer is: $\boxed{43 \frac{2}{25}}$<br/> **Frequently Asked Questions (FAQs) About Calculating the Length of Lead Stripping Needed for a Stained Glass Window**$

Q: What is the purpose of calculating the length of lead stripping needed for a stained glass window?

A: The purpose of calculating the length of lead stripping needed is to ensure that the lead strip is sufficient to provide structural support and add an aesthetic touch to the overall design of the stained glass window.

Q: What are the dimensions of the stained glass window in the example?

A: The dimensions of the stained glass window in the example are $$9 \frac{4}{5}$$ in. by $$11 \frac{21}{25}$$ in.

Q: How do I calculate the perimeter of the stained glass window?

A: To calculate the perimeter of the stained glass window, you need to add up the lengths of all four sides. This involves converting the mixed numbers to improper fractions, calculating the perimeter of the longer and shorter sides, and adding them up to get the total perimeter.

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

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

\text{Perimeter} = 2 \times (\text{length} + \text{width})

Q: How do I convert a mixed number to an improper fraction?

A: To convert a mixed number to an improper fraction, you need to multiply the whole number part by the denominator and add the numerator. Then, you divide the result by the denominator.

Q: What is the least common multiple (LCM) of 25 and 5?

A: The least common multiple (LCM) of 25 and 5 is 25.

Q: How do I add fractions with different denominators?

A: To add fractions with different denominators, you need to find a common denominator. The least common multiple (LCM) of the denominators is the common denominator.

Q: What is the final answer for the length of lead stripping needed for the stained glass window?

A: The final answer for the length of lead stripping needed for the stained glass window is $$43 \frac{2}{25}$$ in.

Q: Can I use a calculator to calculate the length of lead stripping needed?

A: Yes, you can use a calculator to calculate the length of lead stripping needed. However, it's always a good idea to double-check your calculations to ensure accuracy.

Q: What are some common mistakes to avoid when calculating the length of lead stripping needed?

A: Some common mistakes to avoid when calculating the length of lead stripping needed include:

Not converting mixed numbers to improper fractions
Not finding a common denominator when adding fractions
Not double-checking calculations for accuracy

Q: Can I use this method to calculate the length of lead stripping needed for a stained glass window with different dimensions?

A: Yes, you can use this method to calculate the length of lead stripping needed for a stained glass window with different dimensions. Simply substitute the new dimensions into the formula and follow the same steps.

Q: Is there a shortcut to calculating the length of lead stripping needed?

A: While there may be shortcuts to calculating the length of lead stripping needed, it's always a good idea to follow the same steps and double-check your calculations to ensure accuracy.