When two objects are similar then the area scale factor is given by
[tex]\frac{\text{ scaled figure}}{\text{original figure}}=3^2=9[/tex]
So, we have
[tex]\text{ original figure =}\frac{\text{ scaled figure}}{\text{9}}[/tex]
By substituting the given values, we have
[tex]\text{ original figure =}\frac{\text{ 7}2}{\text{9}}[/tex]
Therefore, the surface area of the original figure is 8 square units
