Question

Find the surface area of the rectangular prism.

Answer 1

Hint: Surface area of rectangular prism is calculated by adding the areas of all six surfaces.

Step 1: Given that :

Length $=5m$

Width $=8m$

Height $=8m$

Step 2: Formula: $2lw+2wh+2hl$

Step 3: Put the values of length, width and height in the formula.

Step 4: Area $=2(5\times 8+8\times 8+8\times 5)m^2$

$$\begin{gathered} =2(40+64+40)m^2 \\ =2\times 144m^2 \\ =288m^2 \end{gathered}$$

Final answer: The surface area of the rectangular prism is $288m^2$