Imagine a city where the city blocks were a perfect grid. If you wanted to take a taxi from Point A to Point B. How many blocks is that?
[color=#ff0000][b][size=100]Draw in a few routes. For example draw the shortest route or the longest route.[/size][/b][/color]
How many different routes could you take?
Assuming you are on a taxi and you can only stay on the street. What is the shortest distance from point A to point B?
[color=#ff0000][size=200][size=150][b]This is called TaxiCab geometry because we are assuming you have to stay on the roads to get from one place to another.[/b][/size][/size][/color]