Since the figures are similar, we can establish a rule of three as follows. We know that the area of the smaller figure is , and its volume is . We also know that the area of the larger figure is ; since we don't now its volume, lets represent it with :
We can conclude that the volume of the larger figure is ; therefore, the correct answer is a.
172.2 it correct because u have use you brain and u will get the answer u have to try first and put your mind to it when u do that then u will be able to do anything