Question

If length = 2x
and Breadth=x
height=4m

then solve {2(l+b)×h} in such a full method ..so that I can understand...

moderater answer only​

Answer 1

Answer:

$2(l + b) \times h \\ \\ = \geqslant putting \: up \: the \: values \\ \\ = \geqslant 2(2x + x) \times 4 \\ \\ = \geqslant 2 \times 3x \times 4 \\ \\ = \geqslant 6x \times 4 \\ \\ = \geqslant 24x$