The meridians

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The meridians are maximum imaginary semicircles drawn from the North Pole to the South Pole. They measure degrees.

The reference meridian (0 degrees) is the , a name that comes from an astrological observatory located near _______(London).

The number of meridians is .

Their is N-S.

Their point of maximum separation at the and they converge at the poles.

They divide parallels in angles.

The arch of the parallels has a value of degrees.