Where does this definition of an opposite vertical angle come from?
This entry for an opposite vertical angle is sourced from Main Dictionary, one of the dictionaries and corpora merged into Lughet.
Is an opposite vertical angle a noun, verb, or something else?
In this entry, an opposite vertical angle is tagged as 2n..
What is Lughet?
Lughet is a free trilingual dictionary covering nearly five million entries across Uyghur, Chinese, and English, drawn from more than ten source dictionaries and corpora.
