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If a plane travels from a location at 30° West longitude to a location at 60° Ea

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Question: If a plane travels from a location at 30° West longitude to a location at 60° East longitude, what is the total angular distance in degrees? (2023)

Options:

  1. 90 degrees
  2. 120 degrees
  3. 150 degrees
  4. 180 degrees

Correct Answer: 180 degrees

Exam Year: 2023

Solution: 

The total angular distance is 30 + 60 = 90 degrees, but since they are on opposite sides of the Prime Meridian, the total is 180 degrees.

If a plane travels from a location at 30° West longitude to a location at 60° Ea

Practice Questions

Q1
If a plane travels from a location at 30° West longitude to a location at 60° East longitude, what is the total angular distance in degrees? (2023)
  1. 90 degrees
  2. 120 degrees
  3. 150 degrees
  4. 180 degrees

Questions & Step-by-Step Solutions

If a plane travels from a location at 30° West longitude to a location at 60° East longitude, what is the total angular distance in degrees? (2023)
  • Step 1: Identify the starting longitude, which is 30° West.
  • Step 2: Identify the ending longitude, which is 60° East.
  • Step 3: Understand that West longitudes are negative and East longitudes are positive.
  • Step 4: Calculate the distance from 30° West to the Prime Meridian (0°), which is 30 degrees.
  • Step 5: Calculate the distance from the Prime Meridian (0°) to 60° East, which is 60 degrees.
  • Step 6: Add the two distances together: 30 degrees (to the Prime Meridian) + 60 degrees (to 60° East) = 90 degrees.
  • Step 7: Recognize that 30° West and 60° East are on opposite sides of the Prime Meridian, which means the total angular distance is actually 180 degrees.
  • Longitude Measurement – Understanding how longitude is measured in degrees east and west from the Prime Meridian.
  • Angular Distance Calculation – Calculating the total angular distance between two longitudes, considering their positions relative to the Prime Meridian.
  • Prime Meridian Reference – Recognizing the significance of the Prime Meridian in determining angular distances across the globe.
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