Calculate 73024

Calculate the permille descent of the railway line in the section of 7.2 km by 21.6 m.

Correct answer:

p =  3

Step-by-step explanation:

c=7.2 km m=7.2 1000  m=7200 m b=21.6 m a=c2b2=7200221.62=7199.9676 m  ac p=1000 ab=1000 7199.967621.6=3 

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