66 mm 56 mm 32 mm 26 mm 32 mm 28 mm 8 mm

locate the centroid of the area shown.

Please help

When a truck is placed in the horizontal position, its front and rear axle weights are measured to be 2040 lb and 1980 lb, respectively. When the front end is raised so  that the truck is inclined at a 30° angle from the horizontal, its front axle weight is 1560 lb. Locate the center of gravity of the truck with respect to the rear axle if its wheel base is 12 ft.