Answer:
The area of the rectangular base of the prism is equal to [tex]63\ cm^{2}[/tex]
Step-by-step explanation:
we know that
The volume of a rectangular prism is equal to
[tex]V=Bh[/tex]
where
B is the area of the base
h is the height of the prism
In this problem we have
[tex]V=189\ cm^{3}[/tex]
[tex]h=3\ cm[/tex]
Substitute in the formula and solve for B
[tex]189=B(3)[/tex]
[tex]B=189/3=63\ cm^{2}[/tex]