The sides of triangles do not have set names, except in the case of the right triangle (where one side opposite the right angle is called the hypotenuse). They are usually labâ¦elled arbitrarily a, b and c.
Mound Builders lived in the Ohio River Valley and in the Wisconsin area. Also, Mound Builders lived from the Great Lakes to the Gulf of Mexico and from the Mississippi and Missouri Rivers to the Appalachian mountains.
The Biggest Pyramid in the World Found in Bosnia. In 2005, archaeologist Semir Osmanagich discovered several structures covered by topsoil and vegetation. An international scholar of worldwide pyramidal structures, he recognized the manufactured angles and coordinates that characterize pyramids on five continents.