The equation used for solving this problem is length times width times height and multiply everything by 2 since there is 2 sides to the shape. The equation for the blue figure would be 2x(12x10+12x2+10x2). When this is solved, you get 328 centimeters squared. Now on to the pink figure. The equation for the pink figure would be 2x(8x6+8x3+6x3). When this is solved, you get 180 centimeters squared. Lastly, you add your two products together (328+180) to get 508 centimeters squared.