In fact, if the land is not square or rectangular, you can still have an area of one acre and a perimeter to figure out. For example, a circular lot of land that is one acre in size would have a perimeter of 740 feet.
Adj. 1. extrovert-being concerned with the social and physical environment. extravert, extraverted, extravertive, extrovertive, extroverted. extraversive, extroversive-directed outward; marked by interest in others or concerned with external reality.
But actually, there is no clear boundary between an introvert and an extrovert. It can be thought of as a continuous spectrum which has introversion on one side and extroversion on the other, something like this.. Introverts are basically those people who love to be alone and who energize themselves in loneliness.