Actual area of the Mojave desert is 25,000 square miles and the scale drawing has an area of 10 square inches.
Suppose, the scale of the map is: 1 inch = miles
So, 1 square inches = x² square miles
10 square inches = 10² square miles
Hence, the equation will be
Divide both sides by 10
Square-rooting both sides
Thus, the scale of the map will be: 1 inch = 50 miles.