We know that the painting is rectangular, which area is
[tex]A=w\times l[/tex]
Where A = 8245 cm2, and w = 85 cm. Let's solve for l
[tex]\begin{gathered} 8245=85\times l \\ l=\frac{8245}{85}=97 \end{gathered}[/tex]
Hence, the length is 97 centimeters.
