[tex]\mathsf\blue{♧ANSWER♧}[/tex]
Area = length × width
[tex] \mathsf \green{4 \frac{1}{2} \times 2 \frac{1}{4} }[/tex]
[tex] \orange \implies \mathsf \green{ \frac{9}{2} \times \frac{9}{4} }[/tex]
[tex] \orange \implies \mathsf \green{ \frac{81}{8} = 10.125}[/tex]
[tex] \mathsf \blue{10.125 \: square \: units}[/tex]