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good morning how about I'm going to make some drawings and you have to guess what I'm

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drawing ok look at that a point true and this one a line another line but this is a line and this

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all these are lines except the point if they are lines look we have several types of lines on

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one side we have the straight lines that are these that I draw here and that you can also see

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in the math sheet. In addition, we have curved lines like these, but it does not stay there,

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the classification can be expanded to open lines and closed lines. Look carefully,

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the open ones can be straight lines or curves, but they do not close. On the other hand,

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closed lines are also straight or curved lines but in this case they do close. Do you see the difference

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between open lines and closed lines? Great! Now we are going to focus on

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straight and closed lines, but first look at these cuts, I have taken them out of today's task sheets.

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are all types of lines, sides and vertices. Let's see how to build sides and vertices with

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the straight and closed lines that I have mentioned. If you take paper and pencil and draw different

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straight lines closed, you will see that different geometric figures come out, for example

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a triangle, a square or a rectangle.

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Each of the straight lines that we need to make these figures are the sides.

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For example, for a triangle we need three straight lines,

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that is, the triangle has three sides,

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and the joints where those sides meet are the vertices.