. Fill in the missing word(s) to complete each statement. Many geometric properties can be ______ by using coordinate plane. A proof that uses figures on a coordinate plane to prove geometric properties is called ________. То prove geometric ________ using this method, consider several guidelines for placing on a coordinate plane. First, use the _________as vertex or center of a figure. Second, place at least one ______ of a polygon on a _________Third, keep the figure within the first ________ if possible. And fourth, use coordinates that make simple and easy. Sometimes, using coordinates that are ________ of two would make the computation easier.​