Външен ъгъл на триъгълник
Важная теорема о внешнем угле. Её появление возможно лишь после доказательство леммы о параллельных.
- Resource Type
-
Activity
- Tags
-
- Target Group (Age)
- 14 – 18
- Language
- Russian / Русский язык
Error
A timeout occurred. Trying to re-save …
Sorry, but the server is not responding. Please wait a few minutes and then try to save again.
