Asap pls you correct answers pls (brainliest if possible)

(random answers gets moderated.)

Cthat is the answer

Most of the land is used for housing/commercial uses

The answer is sub saharen africa

The circumcenter is  equidistant  from each vertex of the triangle. the circumcenter is at the  intersection  of the  perpendicular bisectors  of the triangle's sides. the circumcenter of a right triangle falls on the side opposite the right  angle. the incenter  of a triangle is always inside it.