domain Kindly Appraise these 3 domains

[LifeRacer]

Looking forward for your opinions and valuations for these 3 domains. Please help me out.

heptangle.com
heptameter.com
sexagenary.com

 

[LifeRacer]

Can somebody help me appraise these domains?

 

[buywebsites.biz]

Too latinate & fancy.

• Heptangle - looks like an occult term. It is a keyword but not very brandable.
• Heptameter - I was pronouncing it "hepta-meter" then I looked it up and yes I remember it from literature class. i think 99% of people will pronounce this wrong and maybe only 5% of the public will even know what it means.
• Sexagenary - hard to remember & spell for old folks (target audience). Also has the unintended 'sex' in the domain name.

They are single keyword .com's but I don't think they are very desirable words for someone to come along and want to build a site on them.