Najduža dijagonala pravilnog

-terokuta je dvostruko dulja od stranice istog

-terokuta. Koliko ima vrhova taj

-terokut?
The longest diagonal of a regular

‑gon is twice as long as a side of the same

‑gon. How many vertices does that

‑gon have?
[lang=hr]
Najduža dijagonala pravilnog $n$-terokuta je dvostruko dulja od stranice istog $n$-terokuta. Koliko ima vrhova taj $n$-terokut?
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[lang=en]
The longest diagonal of a regular $n$‑gon is twice as long as a side of the same $n$‑gon. How many vertices does that $n$‑gon have?
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