Removed area
[tex]\\ \sf\longmapsto A=\dfrac{\theta}{360}\pi r^2[/tex]
[tex]\\ \sf\longmapsto A=\dfrac{80}{360}\pi r^2[/tex]
[tex]\\ \sf\longmapsto A=\dfrac{2}{9}\pi r^2[/tex]
Left area.
[tex]\\ \sf\longmapsto \pi r^2-\dfrac{2}{9}\pi r^2[/tex]
[tex]\\ \sf\longmapsto \pi r^2(1-2/9)[/tex]
[tex]\\ \sf\longmapsto \pi r^2(7/9)[/tex]
[tex]\\ \sf\longmapsto 7/9(35)^2\pi[/tex]
[tex]\\ \sf\longmapsto 952.7\pi cm^2[/tex]
