hello i have a major test in a couple of days and i want to go over some geometry.

q1) how far apart are Adelaide 35S, 139E and Tokyo 36N, 139E?

answer in Naautical miles.

add the latitute so 35S plus 36 N=71

71 divded 360 times 2 times pie times 6400=7930.78km

nautical miles=7931km divided by 1.852=

4282 nm.

two places on the equator have longitude 150e, 20 w.Find the shortest distance between these two places.correct to the nearest km. 150 plus 20 =170.

170 divded by 360 times 2 times pie times 6400=18989km to nearest km.

fred lives in adelaide (35,s 139E) he wants to watch footbal in spain (37n 6W) starting 2pm sunday. what time is it in Adelaide when the football starts?

A yacht leaves naura 1S, 167E and sails to fiji 16S, 167E.The yaht leaves nauru at 5pm thurday 3rd jan.

find the distance in km between these to places.

I get confused with nautical miles and km.

the yaht sales an average of 8 knots. how many hours from naura to fiji?:

give the date and time of arrival of the yaht in fiji?