Central place theory is a geographical theory that seeks to explain the number, size and location of human settlements in a residential system.[1] The theory was created by the German geographer Walter Christaller, who asserted that settlements simply functioned as 'central places' providing services to surrounding areasExplanation:To develop the theory, Christaller made the following simplifying assumptions:[2]All areas have:an unbounded isotropic (all FLAT), homogeneous, limitless surface (abstract space)an evenly distributed populationall settlements are equidistant and exist in a triangular lattice patternevenly distributed resourcesdistance decay mechanismperfect competition and all sellers are economic people maximizing their profitsconsumers are of the same income level and same shopping behaviourall consumers have a SIMILAR purchasing power and demand for goods and services.Consumers visit the nearest central places that provide the function which they demand. They minimize the distance to be travelledno provider of goods or services is able to earn excess profit (each supplier has a monopoly over a hinterland)Therefore, the trade areas of these central places who provide a particular good or service must all be of equal sizethere is only one type of transport and this would be equally easy in all directionstransport cost is directly proportional to distance travelledThe theory then relied on two concepts: threshold and range.Threshold is the MINIMUM market (population or income) needed to BRING about the selling of a particular good or service.Range is the maximum distance consumers are prepared to travel to acquire goods - at some point the cost or inconvenience will outweigh the need for the good.Mark as brainliest answerfollow me I will FOLLOW up with youbyegood afternoon everyone