Question

Calculate the total surface area of the outside of an open box which has a base measuring 8 by 4 and a height of 5 .

Answer 1

Answer:

Step-by-step explanation:

The surface area of the box=lateral surface area of the box+area of its base

                                             =2(l+b)h+lb

                                            =2*0.5(1+0.8)+1*0.8

                                           =1.8+0.8

                                             =2.6

            Therefore the surface area of the box is 2.6

Answer 2

Answer:

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