What's petroleum system

How does central place theory explain patterns in the size and distribution of cities?

Is a state government creates a new tax to fund schools a example of checks and balances

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