Answer:
504 m³
Step-by-step explanation:
use the pythagoras theorem ok for 3rd side
i.e. (5.6)²+(3.9)²=c²
2/5 is less than 2/3
2/5 < 2/3
2/5 x 3=6/15 is small
2/3x5=1<u>0/15 is big</u>
It is 71,000. :) ...........