Calculating the Total Length of Wire Used

Oct 13, 2025 by wbrum.org 16 views

Introduction

In this problem, we are tasked with finding the length of the remaining wire after creating a pyramid using a 9-meter wire. The pyramid in question is a square-shaped pyramid with a side length of 15 cm and an upright rib length of 19 cm. To solve this problem, we will need to calculate the total length of wire used in creating the pyramid and then subtract this from the initial length of the wire to find the remaining length.

Calculating the Total Length of Wire Used

To calculate the total length of wire used, we need to consider the length of the sides of the pyramid and the length of the upright ribs. The pyramid has a square base with a side length of 15 cm, so the total length of the sides is 4 times the side length, which is 4 x 15 = 60 cm.

The Length of the Upright Ribs

The pyramid also has four upright ribs, each with a length of 19 cm. To find the total length of the upright ribs, we multiply the length of one rib by 4, which gives us 4 x 19 = 76 cm.

Calculating the Total Length of Wire Used

Now that we have calculated the total length of the sides and the total length of the upright ribs, we can add these two values together to find the total length of wire used. The total length of wire used is 60 + 76 = 136 cm.

Converting the Total Length of Wire Used to Meters

Since the initial length of the wire is given in meters, we need to convert the total length of wire used from centimeters to meters. There are 100 centimeters in 1 meter, so we can convert 136 cm to meters by dividing by 100, which gives us 1.36 meters.

Calculating the Remaining Length of Wire

Now that we have calculated the total length of wire used, we can subtract this from the initial length of the wire to find the remaining length. The initial length of the wire is 9 meters, so the remaining length is 9 - 1.36 = 7.64 meters.

Conclusion

In this problem, we were tasked with finding the length of the remaining wire after creating a pyramid using a 9-meter wire. We calculated the total length of wire used by considering the length of the sides of the pyramid and the length of the upright ribs, and then subtracted this from the initial length of the wire to find the remaining length. The remaining length of wire is 7.64 meters.

Mathematical Formulas Used

The total length of the sides of the pyramid is 4 times the side length, which is 4 x 15 = 60 cm.
The total length of the upright ribs is 4 times the length of one rib, which is 4 x 19 = 76 cm.
The total length of wire used is the sum of the total length of the sides and the total length of the upright ribs, which is 60 + 76 = 136 cm.
The total length of wire used in meters is 136 cm / 100 = 1.36 meters.
The remaining length of wire is the initial length of the wire minus the total length of wire used, which is 9 - 1.36 = 7.64 meters.

References

[1] "Mathematics for Dummies". John Wiley & Sons. 2019.
[2] "Geometry: A Comprehensive Introduction". McGraw-Hill Education. 2018.

Glossary

Pyramid: A polyhedron with a square base and four triangular faces.
Square-shaped pyramid: A pyramid with a square base.
Upright rib: A triangular face of a pyramid that connects the base to the apex.
Side length: The length of one side of a square base.
Initial length: The length of the wire before it is used to create the pyramid.
Remaining length: The length of the wire after it is used to create the pyramid.
Frequently Asked Questions (FAQs) About the 9-Meter Wire Pyramid ====================================================================

Q: What is the main objective of the problem?

A: The main objective of the problem is to find the length of the remaining wire after creating a pyramid using a 9-meter wire.

Q: What is the shape of the pyramid?

A: The pyramid is a square-shaped pyramid with a side length of 15 cm and an upright rib length of 19 cm.

Q: How do we calculate the total length of wire used?

A: To calculate the total length of wire used, we need to consider the length of the sides of the pyramid and the length of the upright ribs. The total length of the sides is 4 times the side length, and the total length of the upright ribs is 4 times the length of one rib.

Q: What is the formula for calculating the total length of wire used?

A: The formula for calculating the total length of wire used is:

Total length of wire used = (4 x side length) + (4 x upright rib length)

Q: How do we convert the total length of wire used from centimeters to meters?

A: To convert the total length of wire used from centimeters to meters, we divide the total length in centimeters by 100.

Q: What is the remaining length of wire after creating the pyramid?

A: The remaining length of wire after creating the pyramid is the initial length of the wire minus the total length of wire used.

Q: What is the initial length of the wire?

A: The initial length of the wire is 9 meters.

Q: What is the total length of wire used in meters?

A: The total length of wire used in meters is 1.36 meters.

Q: What is the remaining length of wire in meters?

A: The remaining length of wire in meters is 7.64 meters.

Q: What are some real-world applications of this problem?

A: This problem has real-world applications in engineering and architecture, where wire is used to create structures and frameworks.

Q: Can this problem be solved using different shapes and sizes of pyramids?

A: Yes, this problem can be solved using different shapes and sizes of pyramids. The formula for calculating the total length of wire used will need to be adjusted accordingly.

Q: What are some common mistakes to avoid when solving this problem?

A: Some common mistakes to avoid when solving this problem include:

Not considering the length of the sides and upright ribs separately
Not converting the total length of wire used from centimeters to meters
Not subtracting the total length of wire used from the initial length of the wire to find the remaining length

Q: How can this problem be extended to more complex scenarios?

A: This problem can be extended to more complex scenarios by considering different shapes and sizes of pyramids, as well as different materials and constraints.

Q: What are some related problems that can be solved using similar techniques?

A: Some related problems that can be solved using similar techniques include:

Finding the length of wire used to create a cube
Finding the length of wire used to create a sphere
Finding the length of wire used to create a more complex structure

Q: What are some resources that can be used to learn more about this problem?

A: Some resources that can be used to learn more about this problem include:

Textbooks on geometry and engineering
Online tutorials and videos
Real-world examples and case studies