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May03

Learn about Open and Closed Curves

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Curved lines and straight lines. This week’s post will teach you how to differentiate between open and closed curves.

The first item on our agenda is: Do you know what a curve is? A curve is a succession of points that constantly change direction, in other words, it isn’t straight.

The image below shows a succession of points that always go in the same direction. When the points are connected, they form a straight line.

Curved lines

In the image below, we can see a succession of points that constantly change their direction. When these points are connected, they form a curve.

Curved lines

Within the curved lines, we can find open and closed curves.

The open curves are the ones that are impossible for us to reach the starting point again if we were to follow the succession of points with a pencil, without lifting it from the paper.

This is an example of an open curved line:

Curved lines

The closed curves are the ones where we can return to the starting point if we were to follow the dots with a pencil, without lifting it from the paper.

This is an example of a closed curved line:

Curved lines

Here are some other examples of open and closed curves:

Open Curved Lines:

Curved lines

Closed Curved Lines:

Curved lines

It’s easy, right?  If you enjoyed this post and learned how to differentiate between open and closed curves, share it with your friends and classmates so that they can learn about them, too.

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1 Comment;

  • Aira VegaFeb 04 2018, 9:39 AM

    Thank you it really help me very much

    Reply