Match each scenario witch a concept related to the regulation of international trade

What is the area of the trapezoid shown ?

When president johnson vetoed a law that would extend the freedmen’s bureau, congress reacted by supporting the veto and closing the freedmen’s bureau. writing a new law to show support for the black codes. overriding the veto and expanding the agency’s powers. drafting a law to prevent african americans from voting.

How do private property rights serve as an incentive in a free enterprise economy ?