This is the 2324th most frequent Russian word.
метрах
"Метрах" is the prepositional plural form of "метр," meaning "meters" in English.
In this sentence, 'метрах' is used in the prepositional case to indicate the location or distance of an object relative to a reference, specifically to express proximity in meters.
Магазин находится в пятистах метрах отсюда.
The store is located five hundred meters away from here.
Here, 'метров' (related form of 'метрах') is in the genitive plural case, indicating the extent of the distance covered by the activity described in the sentence.
Мы пробежали пятьсот метров за три минуты.
We ran five hundred meters in three minutes.
In this example, 'метрах' is again used in the prepositional case to emphasize the small distance of the building from the road.