The perpendicular distance of the mid-point of a line from the reference meridian is called
- ADouble meridian distance
- BMeridian distanceCorrect
- CDeparture of the line
- DLatitude of the line
Solution
Concept
Meridian distance
Step-by-step solution
1. Meridian distance of a line is the perpendicular distance of its mid-point from the reference meridian. 2. Double meridian distance (DMD) is twice this value.
Explanation
The meridian distance of a line is the distance from the midpoint of the line to the reference meridian, measured at right angles to the meridian. It is used in the DMD method for computing areas of traverses.
Shortcut
MD = distance of midpoint; DMD = 2 × MD.
Common mistake
Choosing departure because both are E–W distances.
Correct answer: B) Meridian distance