(2) (10 marks) The following right pyramid with square basel is located in R3 so that the vertex 0 is on the origin and the edge a: of the base is along x-axis and edge y of the base is along y-axis. Suppose that the edges of the base is 3x/i meter and the height of is 5 meter. Lateral Face (a) (2 marks) Find the coordinates of the apex point of the pyramid. (b) (2 marks) Use your vectors knowledge from chapter 1 to nd the area of a lateral face. (No mark Will be given to the solutions that did not use the vector operations and geometry)