How to make figures for geometric questions

How to make figures (to ask geometric questions) in this site?

Comments

Drawing pictures

It is easy to use geometry editor.
There are icons and they suggest their use.
At the beginning you can add points by clicking the left button of the mouse.
You can change tools to add a segment or a ray or a line or a circle by three points.
After selecting tool you have to click on the two points to have a segment or on the three points to have the circle . You can add a point on the circle or on a line after selecting the appropriate tool.
Then you have to select all the text using ctrl+a, ctrl+c and paste in comment window between $ [ $ geo$ ]  $ pasted code $ [/ $geo$ ] $
Please look to your post of the geomery question, I have added a picture and if you click edit you can see the instruction format.
You have not to know the instructions, you can use interactive geometry editor.

When I clicked on the

When I clicked on the first icon of the INTERACTIVE GEOMETRY EDITOR, I got a point .Then I clicked on other icons such as line and circle , It gave me no line or circle.I have recently joined this site.The rules of the INTERACTIVE GEOMETRY EDITOR are not known to me.Tell me how to use other icons .

answer

You need two points to make a line and two or three points to have a circle.
Here is the new help file:
Interactive Geometry Editor Help

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