What is the extent of zone IV in the Philippine Plane Coordinate System?

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Multiple Choice

What is the extent of zone IV in the Philippine Plane Coordinate System?

In the Philippine Plane Coordinate System, each zone covers a 3-degree band of longitude, with a central meridian at the midpoint of that band. Zone IV is centered on 123°00', so its extents are 1.5 degrees west and east of the center—that is, from 121°30' to 124°30'. This 3-degree width around the central meridian keeps projection distortions consistent within the zone. The other longitudes correspond to different zones with their own central meridians, not zone IV.

In the Philippine Plane Coordinate System, each zone covers a 3-degree band of longitude, with a central meridian at the midpoint of that band. Zone IV is centered on 123°00', so its extents are 1.5 degrees west and east of the center—that is, from 121°30' to 124°30'. This 3-degree width around the central meridian keeps projection distortions consistent within the zone. The other longitudes correspond to different zones with their own central meridians, not zone IV.

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