Rectangle SURPIC is defined by

Rectangle SURPIC is defined by

• A. Northwest and Southeast corners
• B. Northeast and Southwest corners
• C. A center point and radius
• D. A list of reference vessels

Answer: (A)

A SURPIC rectangle is defined by two opposite corners, which fixes its extent in both latitude (north–south) and longitude (east–west). The northwest corner provides the northern and western limits, while the southeast corner provides the southern and eastern limits. With those two points you can derive all four corners, giving the full bounding box. The center point with a radius would describe a circle, not a rectangle, and a list of reference vessels has no geometric meaning here. While using the opposite corners NE and SW would describe the same rectangle, this convention specifically uses the northwest and southeast corners, which is the standard way this rectangle is defined in this context.

A SURPIC rectangle is defined by two opposite corners, which fixes its extent in both latitude (north–south) and longitude (east–west). The northwest corner provides the northern and western limits, while the southeast corner provides the southern and eastern limits. With those two points you can derive all four corners, giving the full bounding box.

The center point with a radius would describe a circle, not a rectangle, and a list of reference vessels has no geometric meaning here. While using the opposite corners NE and SW would describe the same rectangle, this convention specifically uses the northwest and southeast corners, which is the standard way this rectangle is defined in this context.