A2. The "Delete" tool
Delete the points
When this tool is activated, you can delete the objects with a click.
1st. Activate the "Delete" tool 
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2nd. Delete all the points except the point "P".
The objects have a Context Menu that can be opened with the right click mouse or with a long click on the tactile windows. You can also delete objects with the "Delete" option from the Context Menu.
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.
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2nd. Delete all the points except the point "P".
The objects have a Context Menu that can be opened with the right click mouse or with a long click on the tactile windows. You can also delete objects with the "Delete" option from the Context Menu.
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.