Answer
The metric football field is larger, and the difference in area is 10056 $ft^{2}$.
Work Step by Step
1 ft = 0.3048 m
100 m = $\frac{100}{0.3048}ft=328\,ft$ (rounded off)
54 m = $\frac{54}{0.3048}ft=177\,ft$ (rounded off)
The area is $328 ft \times 177 ft = 58056 ft^{2}$
The area of the football field in Ex. 23=
$300 ft\times 160 ft=48000 \,ft^{2}$.
Hence, the metric football field is larger and the difference in area is
= $58056-48000=10056ft^{2}$