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a) Difference in longitude is
70o - 10o = 60o
b) i) X and Y lie on latitude 45oN. This is distance along the parallel of latitude
therefor Distance between X and Y in Km is
$\frac{60^o}{360^o} x 2 x 3.142 x 6 370 cos 45^o$
$\frac{1}{6}$ x 2 x 3.142 x 6370
= 4 718 km to s.f
ii) Distance in nautical miles
1nm = 1.85 km
4 718 km
= $\frac{4 718}{1.85}$
= 2550 nm
johnmulu answered the question on March 8, 2017 at 13:40
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