The united states is an example of which governmental system?

What first caused people to consider that the continents were once one large landmass?

What type of coastline is commonly found along the western side of the america’s

The pyramid has a square base that us inscribed in the circular base of the cone. draw an image of the composite shape of the base. 2) if the side length of the square base is 8 units long, what is the diameter of the circular base of the cone from the picture in number 1