A garden is in tge shape of a rhombus whoae each side is ​

Can someone tell me if this is perpendicular? !

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?

What is the circumference of the pie