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## What is a closed plane figure formed by connecting three or more line segments at their endpoints?

Answer: A simple, closed plane figure formed by three or more line segments meeting only at their endpoints is called a polygon.

## What is a closed plane figure?

A polygon is a closed figure on a plane bounded by (straight) line segments as its sides.

## Which is stronger round or square aluminum tubing?

When it comes to aluminum tube, shape is also a determining factor in overall strength. For example, round tube is stronger than square tube of an equal length and weight, In addition, round tube has a higher resistance to both flex and torsional twisting than square tube for a given weight.

## Which is stronger pipe or rectangular tube?

For applications that require the strongest possible steel, tube is generally the way to go. It’s known to be significantly stronger than pipe, and one of the strongest metal formats period. While shape isn’t normally the deciding factor for your project, it’s a good way to tell the two steel types apart.

## What is the strongest pipe?

In general, stainless steel piping is the strongest of the two.

## What is the strongest steel tubing?

Strenx® Tube 700MLH

## Is tube or box section stronger?

The answer is round tube has a higher resistance to both flex and torsional twisting than square for a given weight. NB. Use ERW tubing as it is much, much stronger than CHS . If you have a round hole, putting the maximum size round tube through it will be stronger than its’ square counterpart.

## Are round posts stronger than square posts?

Secondly, while square posts have a more stable base than round posts, the latter is more resistant to animal blows. Apart from this, square posts are susceptible to water damage and rot because of its exposed corners. But you will not experience this problem with round posts that have a more contained surface.

## Why tubes are stronger than pipes?

Your intuition that the wall thickness and ID/OD effect the strength is correct. But if you have a pipe with identical dimensions as an HSS tube. The HSS(tube) will be stronger because it has higher Fy and higher Fu.

## Why hollow tubes are stronger?

Strength to weight ratio is better for a hollow pipe than a solid rod. This means a hollow cylinder is stronger than a rod of equal mass and the same material. A hollow cylinder with a bigger inside diameter is better.

## Are hollow tubes stronger?

A hollow tube is stiffer in bending than a solid rod with the same mass. It is not necessarily stronger. The stress is smaller too. So it is stronger.

## How do you make hollow pipes stronger?

Strength to weight ratio is better for a hollow pipe than a solid rod. This means a hollow cylinder is stronger than a rod of equal mass and the same material….

1. Take a rod and a tube both made of mild steel and both of the same weight and both 1 metre long.
2. The solid rod will be easier to bend.

## Why are hollow tubes better for compression?

For two tubes of a given mass and equal length, a hollow tube will be stronger in compression since it is less likely to buckle due to the larger second moment of area.

## Are hollow tubes good for tension or compression?

Hollow tubes are much better with dealing with compression than solid bars but a little more expensive. When you have a problem with tension use hollow tubes.

## Which is easier to bend a solid bar or a hollow tube?

Essentially, a tube is harder to bend, all else equal, because the distance between the faces under tension and compression are further apart. Take a rod and a tube both made of mild steel and both of the same weight and both 1 metre long. The solid rod will be easier to bend.

## Why is an I beam stronger than a solid beam?

Mass is far from the center. The most efficient shape is I beam. It would be less strong than a square beam if you turned it into an H beam.

## What is the main difference between an I beam and an H beam?

H-beam: The H-beam looks like one piece of metal but it has a bevel where three pieces of metal come together. I-beam: An I-beam is not made by welding or riveting sheets of metal together and is only one piece of metal throughout.

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