Your sixth cousin is definitely a relative, but a distant relative. There are many relatives with whom you have no relationship, and many people who are note related to you with whom you have relationships. If by 'count' you mean does it make having an intimate relationship illegal or immoral, no.
Grade seven is usually good for a steady relationship. I'm in sixth grade and my first boyfriend asked me out but then dumped me a few days after because the whole grade found out. Fifth no sixth maybe seventh definitely.
There is no relationship, in the sense that you can have any base are with any height. For a prism shape (if the horizontal cross section is always the same as the base), the base area times the height is equal to the volume.
If you're counting bases, you're not ready for a relationship. 1st base is making out, 2nd base is feeling above the waist, 3rd base is feeling bellow the waist or hand down her skirt and home run is sex ;)
It all depends whether there is marriage that relates you to them or if you are blood related All cousin relationships are blood relationships. With a sixth cousin you have a very small genetic relationship, but there is some.