9. The scale factor between the larger figure and the smaller one is = 10 : 8 = 5 : 4
Since perimeter is a linear measure, it has the same ratio, 5 : 4
The area ratio is the square of the scale factor = 25 : 16
10. The scale factor between the larger figure and the smaller one is 57 : 24
So.....the area of the larger figure is (scale factor)^2 as much as that of the smaller figure
So....
564 (57/24)^2 ≈ 3181 m^2