TT #352 · Parashas Shoftim · Seventh Aliyah · Passuk 21:02
Then your elders and your judges shall go out and measure to the cities that are around the slain person.
Torah Temimah points to Sotah 45b.
TT lemma: וּמָדְדוּ.
English: ‘And measure’ – even a rough measurement.
Derash on the act of measuring (Bavli) — the measurement must be done carefully to identify the nearest city.
The elders carefully measure the distances so that the nearest city is correctly identified and charged with the rite.