Find the Smaller Longitude Separation - Practice 2

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Use east longitudes as positive and west as negative. Take their absolute difference; if it exceeds 180 degrees, subtract it from 360. This is an angular longitude separation, not a ground distance or general great-circle distance.

Worked example

170 E and 170 W differ by 340 numerically, but their smaller longitude separation is 360 - 340 = 20 degrees.

A schematic longitude circle places 170 E and 170 W near the 180-degree wrap. The smaller longitude separation is 20 degrees even though signed values differ by 340. This is an angle, not ground distance.

Question 1 Locations Fern are at 145 E and 135 W. What is their smaller angular longitude separation in degrees? Answer

Question 2 Locations Glen are at 150 E and 140 W. What is their smaller angular longitude separation in degrees? Answer

Question 3 Locations Hill are at 155 E and 145 W. What is their smaller angular longitude separation in degrees? Answer

Question 4 Locations Iris are at 160 E and 150 W. What is their smaller angular longitude separation in degrees? Answer

Question 5 Locations Juniper are at 165 E and 155 W. What is their smaller angular longitude separation in degrees? Answer