Answer:
The length of each side of the box = 9 inches.
Explanation:
Here, the volume of the given packing box = 729 cubic inches
Let us assume the length of 1 side of box = s inches
Also, VOLUME OF CUBE =
![(side)^3](https://img.qammunity.org/2020/formulas/mathematics/middle-school/5cwgljhbes2nl90n08xqfva7s6wd58eqh7.png)
![\implies 729 =(s)^3\\\implies s = \sqrt[3]{729} = \sqrt[3]{(9)^3} = 9\\\implies s = 9](https://img.qammunity.org/2020/formulas/mathematics/middle-school/4lpubim3h7wuwssxhys0thb1c4ofseykt1.png)
Hence the length of each side of the box = 9 inches.