Create 2 lines with 3 points. Then hide the lines, leaving the points.  ​ Lastly, use the polygon tool to create a triangle ABC.​ See the directions below.[br]​

​[br]1.  Under [b]BASIC Tools,[/b] select [b][color=#274e13]LINE[/color][/b]. Create the line AB.​[br][br]2.  Create another line AC. (both lines go thru point A__ see image below).[br]​[br]3.  Under [b]EDIT Tools[/b], select [b][color=#274e13]Show/Hide Object[/color][/b] and click onto both lines (lines should become gray).[br][br]4.  Under [b]BASIC Tools,[/b] select [color=#274e13][b]Polygon[/b][/color].  follow directions to create the lines of the triangle.​[br][br]5. Under [b]BASIC Tools[/b], select [color=#274e13][b]Move.[/b][/color] Move /adjust the points to change the shape of the triangle. [br]​[br][br]Advanced Technique:[br]Instead of step 3 above, go into the [b]Steps tab [/b]and unclick both lines.​ (see image below)[br][br][img]data:image/jpg;base64, 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[/img]