Question

A right rectangular prism has a length of 20.2 cm, a width of 9.1 cm and a height of 14.3 cm. What is the surface area of the right rectangular prism. please Need help asap

Answer 1

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 :)