parallel lines of equal length give perpendicular lines of different lengths?

[reuben.kobier1]

How does two lines parallel lines of equal length give perpendicular lines of different lengths?

The two driven dimensions are the ones I am confused about, all lines pictured are dead straight. 

[g-andresen]

Hi,

Please share the file.

File > export > save as f3d on local drive  > attach it to the next post.

günther

[TheCADWhisperer]

I am pretty sure that is exactly how geometry works.

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@reuben.kobier1 wrote:

I am confused ...

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Vertical height.

Aligned true length.

d4 in my image below is the hypotenuse of an imaginary triangle from your image.

You have dimensioned the Vertical Height and the Hypotenuse.

Note the angles of your dimension text and arrows...

Yellow in this image is Vertical.

Orange in this image is not vertical.

Geometry 101.

Do you see it now?