Question

11. Find the surface area of the rectangular prism with l = 15.5 m, w = 16.5 m, and h = 4.5 m.A.73 m2B.2,301.75 m2C.799.5 m2D.575.4 m2

Answer 1

Solution:

Given:

$\begin{gathered} l=15.5m \\ w=16.5m \\ h=4.5m \end{gathered}$

To calculate the surface area of a rectangular prism, the formula below is used:

$A=2(lw+lh+wh)$

Substituting the given values into the formula:

$\begin{gathered} A=2((15.5\times16.5)+(15.5\times4.5)+(16.5\times4.5)) \\ A=2(255.75+69.75+74.25) \\ A=2(399.75) \\ A=799.5m^2 \end{gathered}$

Therefore, the correct answer is OPTION C.