Answer:
The height of the scale model is 10 inches, and the height of the actual monument is 100 feet. Since there are 12 inches in 1 foot, we can convert the height of the actual monument to inches:
100 feet × 12 inches/foot = 1200 inches
Now we can write the scale as:
1 inch : 120 feet
This means that one inch on the scale model represents 120 feet of the actual monument.