Answer:
729m³
Step-by-step explanation:
To find the length of one side find the cube root of 1728m³
³√1728=12metres
To find the length of the smaller cube
ratio 3:4.
4/7=12m
3/7=?
3/7×12 = 3/7×12×7/4
4/7
=9metres
To find volume of the small cube
volume=9×9×9
=729m³
