Hover or tap underlined Spanish terms to see their translation and exam tip.
Calcular el rumbo inicial (Ri) Ortodrómica desde un punto A (de coordenadas l=05º35’N y L=077º28’W), a un punto B (de coordenadas l=50º47’N y L=156º38’E).Calculate the initial great circle course from point A (l=05º35’N and L=077º28’W) to point B (l=50º47’N and L=156º38’E).
Show the answer
Correct answer: c) Ri=327.7º
Why it is correct
We head west and north: the initial course is 327.7º.
Why the others are not
- a) It does not match the working.
- b) It does not match the working.
- d) It does not match the working.
How to work it out in the exam
- tan R = sin ΔL / (cos l1 tan l2 − sin l1 cos ΔL).
- Convert the result to circular by the direction of travel.
Where this question comes from
- Región de Murcia · 2026 · 1ª convocatoria · CY Tipo 1 · question 18 Official paper · Official answer key
Pending instructor review. Machine translation, not reviewed.