Question

TSA of a cuboid having length, width and height as 2 cm, 3 cm and 4 cm respectively is .

• A. 18 cm${}^2$
• B. 52 cm${}^2$
• C. 36 cm${}^2$

Answer 1

The correct option is B 52 cm${}^2$

TSA of a cuboid $=2(lb+bh+lh)$,
where $l,bandh$ are length, breadth and height of a cuboid respectively.

Therefore, TSA (Total surafce area)
= $2\left[\right(2\times 3)+(3\times 4)+(2\times 4\left)\right]$
= $52c{m}^2$