The scale is 1 inch to 200 feet, theta means if the length of a line segment on the map is 1 inch than the actual length on the ground is 200 feet and vice versa.
i.e. if the actual length on the ground is 200 feet than the scaled length on the map is 1 inch.
So, by using the elementary method, if the actual length on the ground is 1 foot than the scaled length on the map is
inch.
Here, on the map, the side of the square park is 1 foot=12 inch.
So, the actual length of each of the sides of the park is
feet.
In another case, the actual length of the straight path in the park is 900 feet.
So, the scaled length on the map is
inch.
Hence, 900 feet long straight path will be represented by 4.5 inch line segment on the map.