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.
However, at Cahokiaâs height, the site included more than 120 earthen mounds over an expanse of approximately six square miles. The largest of these 120 mounds is Monks Mound (Mound 38), which is also the largest man-made earthen mound on the North American continent.