Acentral line around which the parts of a thing are regularly arranged

:calculate the sum of the interior angles of a 13-sided polygon.

On the map below, which of the following rivers is identified by blue? the huang he river the yangtze river the han river the naktong river

Plz hury on a timer which statements explain what happens at deep-ocean trenches? check all that apply. crust is formed. mountains are formed. seafloor spreading occurs. crust becomes molten rock. denser plates slide under lighter plates.