posted by Shelby .
In a city grid, each block on the east-west streets is 180 meters long. Each block on the north-south streets is also 180 meters long. A walker walks 4 blocks north and then 3 blocks east. How much farther did the walker travel than the actual distance between the start and end points?
distance as the crow flies=180*sqrt(4^2+3^2)
distance he walked: 180*(3+4)