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 Form 4 mathematics online lessons on longitudes and latitudes

Lesson on longitude and time

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Answer Text:
Lesson on longitude and time:
-The earth rotates through #360^0# about its axis every 24 hours in west–east direction. This means all the meridians to the west of Greenwich have sunrise after the Greenwich meridian and their local times are behind GMT. Likewise the meridians to the east of the Greenwich meridian have their sunrise after the Greenwich meridian and their local time is ahead of GMT because the earth rotates from west to east.

Example 1. Find the local time in Nairobi (#1^0S#, #37^OE#), When the local time in Mandera (#4^0N#, #42^0E#) is 3.00 p.m

Example 2. If the local time of London (#52^0N#, #0^0#) is 12.00 noon, find the local time of Nairobi (#1^0S#, #37^0E#).


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