Surveying
The slotted template method

Is prepared, by graphical method
Is rapid and accurate
All listed here
Is suitable for large areas with less control

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Surveying
The meridian of a place is

A semi-circle which passes through the place and is terminated at the poles
A great circle whose plane is perpendicular to the axis of rotation and it also passes through the place
An arc of the great circle which passes through the place and is perpendicular to the equator
A great circle passing through the place and the poles

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