6.47.3 Can you answer these questions?

6.47.3.1 Project a Right Angle (rightangle) with pst-solides3d Problems

https://tex.stackexchange.com/landing/r/digest?cta=question&id=559435

I'm attempting to add a right angle to my diagram, and have looked at all the help that I can find including the manual and several topics on stackexchange, but I just can't get it to work. Any help ... 
[pstricks] [pst-solides3d]
 

asked by freemath https://tex.stackexchange.com/landing/r/digest?cta=user&id=79123 1 vote

6.47.3.2 Vertically Align text in two columns

https://tex.stackexchange.com/landing/r/digest?cta=question&id=560034

I am writing in two columns. I am trying to align the text vertically such that it does not add extra spaces. Happy for the content to be finished before the end of the page. 
This is what I want 
The ... 
[table-of-contents] [vertical-alignment] [two-column] [justification]
 

asked by Abdullah Younas https://tex.stackexchange.com/landing/r/digest?cta=user&id=223215 1 vote

6.47.3.3 How do I continue the display equations inside a frame when the page changes?

https://tex.stackexchange.com/landing/r/digest?cta=question&id=559628

How do I continue the display equations inside a frame when the page changes? 
I have started with \begin{frame}[t] and the equations go beyond that page. Can I continue 
the format of the equations on ... 
[beamer] [equations]
 

asked by latexatha https://tex.stackexchange.com/landing/r/digest?cta=user&id=221299 1 vote