Scaling a geometrical vector means keeping its orientation the same but changing its length by a scale factor. It is like changing the scale of a picture; the objects expand or shrink, but the directions remain the same. Usually, when doing scaling vectors, it is represented by an arrow and rewriting a measure using a convenient unit instead of the actual number.
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Answer:
Scaling is not just an academic topic, but it's a very useful skill in the real world. Think of architects for example. Architects create scale drawings of real-world objects every day. When an architect is planning a building project, he first sits down and draws a blueprint of the new building. This blueprint is actually a scaled version of the real thing. It has to be because it would be impossible for the architect to draw a life-size building on a piece of paper. But he can draw it with a scaled blueprint.
There are two ways you can perform scaling to make your scale model.