Marinada '21

[lang=hr] Mali Vedran voli crtati trokute. Posebno voli računati opsege, no zapeo je. Zadao si je trokut s težišnicama duljina $10, 12$ i $16$ te ne može izračunati opseg tog trokuta. Pomozite mu! (Usrećit će ga jedino rezultat zaokružen na pet decimalnih mjesta.) [/lang] [lang=en] Little Vedran likes to draw triangles. He especially likes to calculate perimeters, but he’s stuck. He drew a triangle with medians $ 10$, $ 12$ and $ 16 $ units long, and doesn't know how to calculate the perimeter of that triangle. Help him. (Only the result rounded to five decimal places will make him happy.) [/lang]