A forest covering 45 km² has a uniform tree density of 250 trees per hectare. How many trees are present in the forest?

Step-by-step solution

1. Convert the forest area from km² to hectares: 1 km² = 100 hectares, so 45 km² = 45 × 100 = 4,500 hectares. (This gives the area in the unit of the density.)
2. Multiply the area in hectares by the density: 4,500 × 250 = 1,125,000. (This yields the total number of trees.)

Concept tested: Tree density calculation

Published 13 October 2026 · How this solution was prepared and checked