Question

The given figure shows the net of a cuboid with a square base. Find the volume of the cuboid.

Answer 1

$x+y=21,4x+y=36$

$\Rightarrow 3x=15\Rightarrow x=5,y=16$

Now, $l=y=16$

$b=x=5$

$h=x=5$

$\therefore$ volume = $lbh=16\times 5\times 5=400{cm}^3$