We have the following parallelogram.:
We have that the height of the paralellogram is 5 cm and the base is 9cm, then the area is:
[tex]\begin{gathered} A=b\cdot h \\ \Rightarrow A=9\cdot5=45 \\ A=45\operatorname{cm}^2 \end{gathered}[/tex]therefore, the area of the parallellogram is 45 cm²