Chester and his father stood on their newly-bought rectangular lot whose length and width are 60 and 40 meters, respectively. His father told him that the place they are standing at is one of the four boundary points of their lot. He then told Chester that they are going to put a marker on each of the four boundary points. Help Chester to locate the coordinates of the 3 boundary points using the Cartesian coordinate plane if the coordinates of their location is at (-30, 20). (Let 1 unit = 1 meter) PAHELP ASAP

walang nagtuturo sa akin :(​