Question

Use the scale bar to estimate both the east-west and north south distances of the area served by the TVA

Answer 1

ANSWER :

Scale regards to how map units relate to real-world units. Projection treats with the methods and  challenges around turning a three-dimensional (and sort of lumpy) earth into a two-dimensional map.

EXPLANATION :

When we visually represent an area of the world on a map, we must reduce its size to fit within the  boundaries of the map. Map scale measures how much the features of the world are reduced to fit on a  map; or more precisely, map scale shows the proportion of a given distance on a map to the  alike distance on the ground in the actual world. We often choose mapping resolutions  intentionally to make the map easier to understand. Scale and keys of telling the map user what the  map is measuring on the ground. Projection mechanics, types of projections, and their characteristics. The word “map projection” refers to both the process and product of changing spatial coordinates on a three-dimensional sphere on the two-dimensional sphere. In terms of  actual mechanics, most steps use mathematical functions that take as inputs locations on the  sphere and translate them into locations on a two-dimensional surface.

Answer 2

Not having the map and can't tell you the scale. However, the TVA program ran along the Tennessee River and included 7 states in the program. The program built dams to stop flooding and brought electricity to the rural area. The states included: Tennessee, Kentucky, Virginia, North Carolina, Georgia, Alabama, and Mississippi.