There will be no students at school or the sky could be cloudy for the equinox day.
As we could not make any measurement on march 20th, we experimented on 15th, 16th and 19th.
|march 15th||100 cm||104.5 cm||46.26°|
|march 16th||100 cm||103 cm||45.85°|
|march 19th||100 cm||98.5 cm||44.57°|
|march 20th||100 cm||?????||?????|
Then we we made a graphic interpolation to have an estimation of the result for 20th march.
Gnomon : 100 cm
Shadow : 97 cm
Angle : 44.13° = 44°10’