Answer: Disagree
Reason
1 inch on paper corresponds to 12 feet in real life.
We can write the shorthand scale 1:12 which is the notation that you'll find on most maps.
Square both sides of 1:12 to get 1:144. It means 1 square inch on paper corresponds to 144 square feet in real life.
Next, multiply both parts by 60.
1*60 = 60
144*60 = 8640
The ratio 1:144 scales up to 60:8640
It means 60 square inches on paper corresponds to 8640 square feet in real life. This does not match with the 720 made in the claim.