❗️❗️❗️ last one says Carlos definition :the intersection of two lines such as AC BD (they both have the arrows on top like a line segment)

Every weekday, mr. jones bikes from his home to his job. sometimes he rides along two roads, the long route that is shown by the solid lines. other times, he takes the shortcut shown by the dashed line. how many fewer kilometers does mr. jones bike when he takes the shortcut instead of the long route?