Specific operation methods for drawing similar triangles using geometric sketchpad

Want to use Geometric Sketchpad to draw similar triangles, but don’t know how to do it? PHP editor Xiaoxin provides a detailed tutorial to teach you how to draw similar triangles easily step by step. Come and learn to make your geometric sketchpad more convenient!

1. Draw triangle ABC. Use the Point Tool and the Line Segment Tool to create triangle ABC.

2. Construct a straight line. Use the Line Segment Tool and hold down the Shift key to draw a line segment. Select the two endpoints of the line segment and press [Ctrl H] to hide the two control points on the straight line.

3. Construct the mark ratio. Use the point tool to construct three points D, E, and F on the straight line. Use the moving arrow tool to select points D, E, and F in sequence. Use the menu [Transform]-[Mark Ratio] to mark the ratio.

4. Construct similar triangles. Double-click point A, select three sides and three vertices of the triangle, pop up the scaling dialog box from the menu [Transform] - [Scale], select [Mark Ratio] and click [Scale] to set,

5. Drag point F to move on the straight line, and you can see the changes in similar triangles.

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