Question

The cereal box shown below is a rectangular prism.

Answer 1

The surface area of cereal box is 580 square units, if the height is 20 the width is 3 and the length is 10.

Step-by-step explanation:

The given is,

                 Cereal box has a shape of rectangular prism

                 Height is 20

                 Width is 3

                 Length is 10

Step: 1

                Formula to calculate the surface area of the rectangular prism,

                             $A = 2 ( lw+wh +hl)$......................(1)

                Where, l - Length

                            w - Width

                            h - Height

Step: 2

               From the given,

                         h = 20

                        w = 3

                          l = 10

              Equation (1) becomes,

                       $A = 2 ( (10)(3)+(3)(20)+(20)(10))$

                           = 2 ( 30 + 60 + 200 )

                      A = 580 square units

Result:

          The surface area of cereal box is 580 square units, if the height is 20 the width is 3 and the length is 10.