All polygons are closed? true or false

In 2009, the author pawel bozyk, described brazil as a newly industrialized country. while its economy had not yet reached that of highly developed countries, brazil has moved itself into being a significant member of the international economy. what economic model does brazil fit into, regarding its development path?

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

In the diagram below dab and dac are adjacent angles