.We know
[tex]\\ \sf\longmapsto Area=\dfrac{πd^2}{4}[/tex]
[tex]\\ \sf\longmapsto Area=\dfrac{3.14(8)^2}{4}[/tex]
[tex]\\ \sf\longmapsto Area=\dfrac{3.14(64)}{4}[/tex]
[tex]\\ \sf\longmapsto Area=3.14(16)[/tex]
[tex]\\ \sf\longmapsto Area=50.24m^2[/tex]