How to double the known line segment using geometric sketchpad

Geometry Sketchpad is a powerful geometric drawing software that is deeply loved by students and teachers. However, many users encounter a problem when using Geometry Sketchpad: How to double the length of a known line segment? In response to this problem, PHP editor Banana has specially prepared detailed operation methods to help everyone solve the problem easily. Below, we will guide you step by step on how to use the geometric sketchpad to extend a line segment twice, so stay tuned.

Step 1 Draw the known line segment. Open the geometric sketchpad, select the [Line Segment Ruler Tool] from the toolbox on the left, and draw line segment AB in the blank space of the sketchpad, as shown in the figure.

Step 2 Select one of the endpoints, for example, select point B, double-click the mouse and mark it as the center, as shown in the figure.

Step 3 Select the line segment AB and the other endpoint A, click the [Transform] menu above, and select the [Scale] command under its drop-down menu.

Step 4 Enter 2/1 in the pop-up scaling dialog box, and then click [OK]. At this time, line segment AB will be doubled, as shown in the figure.

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