Question

Find surface area of the following figure.A. 3,984B. 4,398C. 3,668D. 2,890

Answer 1

The surface area of rectangular prism can be calculated using the following formula:

`SA=2wl+2hl+2hw`

Where "w" is the width, "l" is the length and "h" is the height of the rectangular prism.

Observe the rectangular prism shown in the exercise. You can identify that:

`\begin{gathered} l=26ft \\ w=20ft \\ h=32ft \end{gathered}`

Knowing these values, you can substitute them into the formula:

`\begin{gathered} SA=2wl+2hl+2hw \\ SA=2(20ft)(26ft)+2(32ft)(26ft)+2(32ft)(20ft) \end{gathered}`

Finally, evaluating, you get that the surface area of the rectangular prism is:

`\begin{gathered} SA=1,040ft^2+1,664ft^2+1,280ft^2 \\ SA=3,984ft^2 \end{gathered}`

The answer is: Option A.