Question

What criterion must a figure satisfy to be classified as closed?

Options

• It must be composed solely of curves.

• Its boundaries must intersect at least once.

• Its starting and ending points must be the same.

• It must contain an interior and an exterior region.

Answer 1

Its starting and ending points must be the same.

Explanation:

A closed figure is fundamentally defined by the continuity of its boundary, forming a complete loop.