Question

Find out the surface area of the following shape.

• A.
  $140c{m}^2$
• B.
  $156c{m}^2$
• C.
  $121c{m}^2$
• D.
  $144c{m}^2$

Answer 1

The correct option is D

$144c{m}^2$
In the given figure,there are two cuboids joined.

Total surface area of the given solid will be

$=2(9\times 2+2\times 2+2\times 9)+2(8\times 2+2\times 2+2\times 8)-2(2\times 2)$

$=(80+72-8)c{m}^2=144c{m}^2$