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Lesson Plans
'Tis a Long, Long Way to Tipperary!
Data Sheet #2
Calculating Longitude and Time




(a) From the prime meridian to City A, the distance in degrees is ___________.

(b) From the prime meridian to City B, the distance in degrees is ___________.

(c) Therefore, the total distance from City A to City B in degrees is  _________.

(d) Convert degrees apart into time apart.  ____________________________

(e) If every 15 is equivalent to 1 hour, how many hours are in 90? _________

(f) City B is west of City A. Therefore it must be earlier in City B than City A. If the time in City A is midnight, what is the time in City B?  _________________