Question

The dimensions of a rectangular prism are $3\text{cm}\times 3\text{cm}\times 8\text{cm}$. Find the total surface area.

• A. $114{\text{cm}}^2$
• B. $144{\text{cm}}^2$
• C. $96{\text{cm}}^2$
• D. $66{\text{cm}}^2$

Answer 1

The correct option is A $114{\text{cm}}^2$

The dimensions of the rectangular prism are given by: $3\text{cm}\times 3\text{cm}\times 8\text{cm}$
So, the total surface area $=2(LB+BH+LH)$
$=2(24+24+9)=114{\text{cm}}^2$