from station Noisy Champs,

Paris m3:17 r210

to roundabout Cité Descartes.

Paris m3:22 r214

m3:17 to m3:22

r210 to r214

= clockwise

= outwards

Distance

inwards/outwards: radius r214 - r210 = 400m

Time/space Minutes :22 - :17 = 500m

flight distance / Hipotenuse:

more than 500 m

less than 500 + 400 m