Parallel lines with a transversal

mathsmrgordon shared this question 2 years ago
Answered

I want to create a pair of parallel line segments with a transversal going through them.

I want to create a pivot point so that the user can rotate the parallel lines together.

I want the user to be able to move the parallel lines closer and further away from each other.

I also want to be able to create 8 check boxes that allow users to hide/reveal the value of the 8 angles created by the parallel lines and the intersecting transversal.

I want to keep AB parallel to DH (image attached)


How do I do these things? Thanks a lot

Comments (2)

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Hi,

please see : (you can move points or lines)

https://www.geogebra.org/m/...

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Many people have posted variations of this type of tool in the Materials; you might find one that works for you.


It's complicated by the use of segments instead of lines, combined with the criteria that they rotate together as you drag one point.

Another method you can consider is attached; for steps see the Construction Protocol. I would recommend the dashed purple lines be hidden in a finished version.

Only 1 angle is shown but the others aren't hard to make -- you can use the Angle tool and then the Checkbox tool and select the angle you want to show and hide it using the check box.

-Peter

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