Hover or tap underlined Spanish terms to see their translation and exam tip.
Estudian la derrota ortodrómica desde -A- 32º14,2′N – 064º43,1′W (Hamilton), hacia -B- 36º50,3′N – 008º57,5′W (al Sur de San Vicente, Portugal) y calculan la distancia ortodrómica:They study the great circle route from -A- 32º14.2′N – 064º43.1′W (Hamilton) to -B- 36º50.3′N – 008º57.5′W (south of San Vicente, Portugal) and work out the great circle distance:
Show the answer
Correct answer: b) 2730.9′
Why it is correct
cos D = sin l1 sin l2 + cos l1 cos l2 cos ΔL, with ΔL = 55º 45.6′. D = 45.515º, and times 60 that is 2730.9 miles.
Why the others are not
- a) The formula does not give this value.
- c) The formula does not give this value.
- d) The formula does not give this value.
How to work it out in the exam
- Turn D into minutes: each degree is 60 miles.
Where this question comes from
- Región de Murcia · 2022 · 1ª convocatoria · CY Tipo 1 · question 11 Official paper · Official answer key
Pending instructor review. Machine translation, not reviewed.