Question

A brick whose length, breadth and height are $3$m, $6$m and $9$m respectively which are cut into single cuboid. Find the surface area of the cuboid.

• A. $198m^2$
• B. $188m^2$
• C. $178m^2$
• D. $158m^2$

Answer 1

The correct option is A $198m^2$

Surface area of the cuboid $=2(lb+bh+hl)$
$=2\times (3\times 6+6\times 9+9\times 3)$
$=2\times (18+54+27)$
$=2\times \left(99\right)$
$=198m^2$