The rule of the area of the rhombus using its diagonals is
[tex]A=\frac{d1\times d2}{2}[/tex]The length of d1 = 7 cm
The length of d2 = 2 cm
Substitute them in the rule above
[tex]\begin{gathered} A=\frac{7\times2}{2} \\ A=\frac{14}{2} \\ A=7\operatorname{cm} \end{gathered}[/tex]The area of the rhombus is 7 square centimeters