Road maps.

This is a road map.  Using the scale, calculate the distance in kilometres between the following points:

Sagunt-Olocau

Lliria-Bétera

Puçol-Torrent

Picassent-Godella

Alboraya-Paiporta

Alcácer-Serra

L'Eliana-Silla

Bétera-Torrent

Silla-Monserrat

Loriguilla-Sagunt

Godella-Meliana

Llíria-Olocau

The technique is as follows:

1st Measure the distance between two points.

2nd Each petazeta is one kilometer. That's all.