How to use geometric sketchpad to draw a line segment equal to a known line segment

How to create a line segment that is the same length as an existing line segment? In Geometric Sketchpad, some methods for making geometric figures are very convenient to use, such as making a line segment that is the same length as an existing line segment. Below, PHP editor Apple will introduce to you the operation method of making a line segment equal to a known line segment in Geometric Sketchpad. Let’s do it together. Let's see.

Method 1. Translate the point

Construct a line segment and measure the length. Open the geometry board and use the [Line Segment Tool] to draw a line segment AB in the blank area of ​​the drawing board. Use the move tool to select it and execute the [Measure]-[Length] command to get the length of line segment AB.

Construct a known line segment. Use the [Point Tool] to draw a point C arbitrarily on the drawing board, and then execute the [Transform]-[Translation] command to translate the point C. The angle is determined as needed, and the distance is the length of the line segment AB to obtain a new point. D, and then connect the two points C and D, which is a line segment equal to the known line segment.

Method 2: Use vector translation

to mark vectors on known line segments. Open the geometric sketchpad and use the line segment tool to draw a line segment arbitrarily. Here we also use the line segment AB above. Select the two endpoints of line segment AB in turn and execute the [Transform]-[Mark Vector] command.

Use the [Point Tool] to draw a point D arbitrarily on the drawing board, execute the [Transform]-[Translation] command to translate the point, and click OK in the pop-up dialog box to get Create a new point E, and then connect the two points to construct a line segment, and you will get a line segment equal to the known line segment.

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