How many hexagonal cells with a 3 km radius would be needed to cover an area of 600 km2?

How many hexagonal cells with a 3 km radius would be needed to cover an area of 600 km2?

How many hexagonal cells with a 3 km radius would be needed to cover an area of 600 km2?

How many hexagonal cells with a 3 km radius would be needed to cover an area of 600 km2?