Question

what are boundaries of surfaces known as

Answer 1

Hey MATE!

Boundaries of surfaces are known as edges.

Almost every thing has edges except spheres.

Hope it helps

Hakuna Matata :))

Answer 2

❤️In topology, a sphere remains a sphere even when it's squeezed or stretched. ... In topology, a finite region with noboundary is called a cycle. Circles and spherical surfaces are cycles. In general, if something is a boundary, it has no boundary itself. So boundariesare cycles.❤️