The area of a rhombus is given by the following formula:
[tex]A=\frac{D\cdot d}{2}[/tex]Where D is the longer diagonal and d is the shorter diagonal.
In this case, AC is the longer diagonal and DB is the shorter one.
Use the given values to find AC:
[tex]\begin{gathered} A=\frac{AC\cdot DB}{2} \\ 372=\frac{AC\cdot12}{2} \\ \frac{2\cdot372}{12}=AC \\ AC=62 \end{gathered}[/tex]AC is 62 long.
