Question

The amount of cardboard needed to make cubical box of given net is sq. in.

• A. 1734
• B. 1156
• C. 2312
• D. 578

Answer 1

The correct option is A 1734

Since the box is cubical, the unfolded box will be a figure made of congruent squares.

Side of square = 17 in

$\text{Area of each square =}{\text{side}}^2$
$={17}^2$
$=289\text{sq. in}$

Number of squares in the unfolded figure = 6
<!--td {border: 1px solid #ccc;}br {mso-data-placement:same-cell;}--> ∴Total area of the figure = 6 x Area of each square
$=6\times 289$
$=1734\text{sq. in}$