Anyone good at solving rational zeros

Aline on the wall and a line on the floor are skew. always, sometimes, or never?

I'm confused on this could anyone me and show me what i need to do to solve it.

❤️ (geometry) does the construction demonstrate how to copy an angle correctly using technology a) yes; the distance between points a and f was used to create circle h b) yes; the distance between points f and g was used to create circle h c)no; the distance between points a and f was used to create circle h d) no; the distance between points f and g was used to create circle h