B4. The "Centroid" command
Draw the centre point of a regular polygon.
GeoGebra has many commands, but few have a tool to use them. For this reason, GeoGebra provides a writing area called "Input Bar". Once you have typed the command, you must press the "Enter ↩" key. When you write the first three letters of the command, GeoGebra provides a list of names to avoid writing mistakes.
1st. Enter the first three letters of the Q=Cen command and at the end of the list you will see Centroid(
<Polygon>). Click on this option and then enter the name P into the brackets, replacing the expression. The command will remain in the form Q=Centroid(P). Then press the "Enter ↩" key to validate the entry.
The two curved arrows located in the upper right corner of the Graphics View allow you to reset the activity.
If the activity is correct, you will get 10 points automatically.