I need a tube that is 118cm long. The total allowance is 158cm by Multiplying the LxWxH. What circumference can the tube be.

What shape is the tube? You talk about LxWxH and then ask for circumference.

If it's a round tube that fits inside a rectangular (or square) box, then I have to ask, what does the 158cm mean? Volume? Sum of length and circumference?

If the latter, then 118+C = 158 and C = 40 cm.

If that's not it, clarify your problem.

Sorry I was not more clear. The airline has stated that A container can be carried but must not exceed 158cm in total. eg. LxWxH The container I need to take is a tube that must be 118cm long. I need to know what diameter the tube can be to meet the overall total of 158cm. Thanks

Go back and check. I'm sure that the 158cm is the length + girth. That is, as I described it.

To determine the circumference of the tube within the given dimensions, we need to know either the diameter or radius of the tube. Since you have provided the length of the tube but not its shape, it is not possible to calculate the circumference accurately without additional information.

However, given that the total allowance is 158cm when the length, width, and height are multiplied together, we can make an assumption that the tube is a cylinder. In that case, we can calculate the circumference using the formula:

Circumference = 2 * π * radius

To find the radius, we can rearrange the formula for calculating the volume of a cylinder:

Volume = π * (radius^2) * height

Since the volume of the cylinder is not provided, we can use the available information to calculate a potential radius by rearranging the formula. Let's assume a height of 118cm and use the formula:

radius^2 = (total allowance) / (π * height)

radius^2 = 158 / (π * 118)

radius^2 ≈ 0.4259

Thus, the approximate radius squared is 0.4259. By taking the square root, we can find the approximate radius:

radius ≈ √0.4259 ≈ 0.6529

Now, we can calculate the circumference:

Circumference ≈ 2 * π * radius

Circumference ≈ 2 * π * 0.6529

Circumference ≈ 4.104

Therefore, the approximate circumference of the tube, assuming it is a cylinder, is about 4.104 cm. Keep in mind that this value is derived from assumptions, so it should be used with caution. It is necessary to have more specific information about the tube's shape to perform an accurate calculation.