Points, Lines and Planes

Task 1
Make Points A, B, C Collinear
Task 2
Create two line segments on the plane such that[br][math]\frac{ }{AB}\frac{ }{\parallel}\frac{ }{CD}[/math]
Task 3
Create two lines on the plane such that DB [math]\perp[/math] CA
Task 4
Arrange point C and ray BD so that they are coplanar.
Task 5
Make Points A, B, C Collinear, in that order. Now create ray CA and ray CB.
Task 5 Question
Are the rays the same?
Task 6
Create ray AB, add a point C on the ray so B is between A and C.
Create a plane by clicking on 3 points.
When can't you create a plane?
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Information: Points, Lines and Planes