How to add the arrow tool in the custom tool of Geometric Sketchpad

When using the geometric sketchpad for drawing, the arrow tool is often missing from the custom toolbar, which brings inconvenience to the drawing. This time, PHP editor Xiaoxin will introduce in detail the specific operation method of adding arrow tools to the custom toolbar in the geometric sketchpad to help you easily draw graphics with arrow indicators. The following content will guide you step by step through the process of adding the arrow tool, ensuring that you can draw smoothly in the geometric sketchpad.

1. Construct line segments and points. Draw a line segment AB in the plane, select point B, and translate it upward 1cm to get point C.

2. Construct circles and intersections. Draw a circle with B as the center and C as the radius. Select [Construct a circle from the center and points on the circumference] in the [Construction] menu, and the circle intersects the line segment AB at point D.

3. Construct the symmetry point of the intersection. Double-click point B, select point D, select [Rotate] in [Transform], and set the rotation angle to 180 degrees to construct point D’.

4. Rotate point B and construct a symmetry point of the rotation point. Double-click point D’, select point B, select [Rotate] in the [Transform] menu, set the rotation angle to 15 degrees, and obtain point E. Double-click line segment AB and select [Reflection] in the [Transform] menu to obtain point F.

5. Select points E, F and D’ to construct the interior of the triangle. Select the triangle, right-click to change the color to red, and set the properties to opacity to 100%.

6. Add arrows to [Customize Tools]. Hide the circle, points E, F, D, D’, and C, and the arrow is drawn. Frame the entire graphic and click the [Create New Tool] command under the [Customize Tool] button. Enter the name in the dialog box and click OK.

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