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Please solve!! Use that polynomial to determine the total surface area of each of the following rectangular solids please read below

Please solve!! Use that polynomial to determine the total surface area of each of-example-1
User Shine J
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1 Answer

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Hello

The formula of the total surface area of this figure is


\begin{gathered} 2lw+2lh+2hw \\ 2(5* x)+2(3*5)+2(x*5) \\ 10x+30+10x=20x+30 \end{gathered}

The total surface area of this figure is 20x + 30

The polynomial that represents the total surface area of the figure is

20x + 30.

Now we have to find the surface area of figure a

3 by 5 by 3

The surface area for figure a is


2(3*5)+2(5*3)+2(3*3)=78units^2

The surface area for figure b is

3 by 5 by 5


2(3*5)+2(5*5)+2(5*3)=110units^2_{}

The surface area of figure c is

3 by 5 by 12


2(3*5)+2(3*12)+2(5*12)=222units^2

The surface area for figure d is

3 by 5 by 14


2(3*5)+2(5*14)+2(3*14)=254units_{}

From the calculations above, the surface area of figure a, b, c and d are 78 units, 110 units, 222 units and 254 units respectively

User MichaelLake
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