To calculate the surface area of a rectangular prism, you can use the formula:
\[ \text{Surface Area} = 2(lw + lh + wh) \]
where \( l \) is the length, \( w \) is the width, and \( h \) is the height.
Given:
- Length (\( l \)) = 8 feet
- Width (\( w \)) = 6.5 feet
- Height (\( h \)) = 3 feet
Now, let’s calculate each part of the formula:
- \( lw = 8 \times 6.5 = 52 \)
- \( lh = 8 \times 3 = 24 \)
- \( wh = 6.5 \times 3 = 19.5 \)
Now sum these areas:
\[ lw + lh + wh = 52 + 24 + 19.5 = 95.5 \]
Now, multiply the sum by 2 to find the total surface area:
\[ \text{Surface Area} = 2 \times 95.5 = 191 \text{ ft}^2 \]
Thus, the surface area of the rectangular prism is \( 191 \text{ ft}^2 \).
The correct answer is C. 191 ft².