Given a parallelogram
The area of the parallelogram is
[tex]A=b\times h[/tex]
SUbstitute the value of A and h to find b
[tex]\begin{gathered} A=220yd^2 \\ h=11yd \\ A=b\times h \\ b=\frac{A}{h} \\ b=\frac{220}{11} \\ b=20yd \end{gathered}[/tex]
Hence, the missing length is 20 yd
