We are given that the width of of a rectangular painting is 83 cm and it's area is 7719 cm² and we are asked to find it's length , as we know that the area of a rectangular shape is given by L×B. Where L is the length of the rectangular shape and B is the width/Breadth .Now , applying the same concept in our question we have ;
[tex]{:\implies \quad \sf L\times 83=7719}[/tex]
[tex]{:\implies \quad \sf L=\dfrac{7719}{83}}[/tex]
[tex]{:\implies \quad \sf L=93}[/tex]
[tex]{:\implies \quad \bf \therefore \quad \underline{\underline{Length=93\:\: cm}}}[/tex]