In today’s post, we will take a look at open and closed polygonal lines.
But first, we need to know what polygons are: polygonal lines are several straight segments placed together.
Polygonal lines can be classified as open or closed.
- A polygonal line is open when the segments do not all connect at the beginning and end. That is, if we draw a line starting at one point, and we finish drawing it at a different point.
This is an example of an open polygonal line:
- A polygonal line is closed when the segments do connect at the beginning and end. That is, you start to draw the line at a point and finish at the same point.
This is an example of a closed polygonal line:
Do you know how to identify open and closed polygonal lines?
I encourage you to try to identify whether the following polygonal lines are open or closed. You will find the answers below.
1.
2.
3.
4.
5.
6.
Did you try to solve the previous activity? Here are the answers:
1. Open
2. Closed
3. Open
4. Open
5. Closed
6. Closed
How did you find the activity? If you’ve done well, it is because you know what open and closed polygonal lines are.
Share it with your friends and colleagues so they can learn about them too.
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Learn More:
- Elementary Geometry – Open Lines
- Learn about Open and Closed Curves
- Learn More about Straight Lines
- Lines: What They Are, Types, and Examples
- Learn about Angles: Obtuse, Straight, Right and Acute Angle
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