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I don’t really understand the subject, and I don’t want the whole page done :)), I just need one on each line so I can understand the subject!

I Dont Really Understand The Subject And I Dont Want The Whole Page Done I Just Need One On Each Line So I Can Understand The Subject class=

Sagot :

1.

The given diagram represents a rectangular prism. As only one side of the base is given, we have to assu ftme that the base is a square.

Now, the total surface area of the prism will be the sum of the areas of all its faces.

Also note that each side face of the prism is a triangle with base 9 ft and height 7 ft.

So the area of a triangular side face is calculated as,

[tex]\begin{gathered} A_s=\frac{1}{2}\cdot9\cdot7 \\ A_s=\frac{63}{2} \\ A_s=31.5 \end{gathered}[/tex]

Since base is a square of side 9 ft, its area is given by,

[tex]\begin{gathered} A_b=9\cdot9 \\ A_b=81 \end{gathered}[/tex]

Since each side face is identical, the total lateral surface area is given by,

[tex]\begin{gathered} \text{LSA}=4\cdot A_s \\ \text{LSA}=4\cdot(31.5) \\ \text{LSA}=126 \end{gathered}[/tex]

Then the total surface area of the given prism is calculated as,

[tex]\begin{gathered} TSA=LSA+\text{Base Area} \\ \text{TSA}=126+81 \\ \text{TSA}=207 \end{gathered}[/tex]

Thus, the area of the of the given prism is 207 square feet.

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