Hover or tap underlined Spanish terms to see their translation and exam tip.
Calcular la distancia Ortodrómica desde un punto A de coordenadas l=42º23’S y L=147º42’E, a un punto B de coordenadas l=56º00’S y L=67º13’W.Calculate the Great Circle distance from point A at l=42º23’S and L=147º42’E to point B at l=56º00’S and L=67º13’W.
Show the answer
Correct answer: b) Do= 4,636.8’
Why it is correct
It crosses the 180º meridian: ΔLong = 145º 05′. The formula gives about 4637 miles.
Why the others are not
- a) It does not match the working.
- c) It does not match the working.
- d) It does not match the working.
How to work it out in the exam
- cos D = sin l1 sin l2 + cos l1 cos l2 cos ΔL, with south latitude negative.
- Turn D into minutes: each minute is a mile.
Where this question comes from
- Región de Murcia · 2026 · 2ª convocatoria · CY Tipo 1 · question 17 Official paper · Official answer key
Pending instructor review. Machine translation, not reviewed.