Perspective view of a square prism

Single point perspective view of a square prism is drawn. Given problems is
"A square prism of the base side 30 mm and axis height 50 mm is lying on the ground on its base with a face parallel to and 15 mm behind PP. The station point is 40 mm in front of the PP, 60 mm above the ground plane and lies in a central plane 40 mm to the right of the axis of the prism. Draw the perspective projection."