To find this the first step we do is multiply the length by the height (20.2 x 14.3) to get 288.86. Now there are 2 sides just the same so together it would be 577.72. Next is width times height. 9.1 times 14.3 to get 130.13 then times that by 2 to get 260.26. So far we have this 577.72 + 260.26 + (length times width). 20.2 times 9.1 is 183.82 then times that by 2 to get 367.64. Now we add all of them to get 1205.62 cm^2. The surface area of the right rectangular prism is 1,205.62 cm^2. If this is wrong please let me know so I can research more on the subject. Thanks :)