The scale of the first map is 1cm : 40 km
The scale of the second map is 1 cm : 1.25 km
The scale of the third map is 1 cm : 12.50 km
A scale drawing is a smaller image of an original image. The map is a scale drawing.
Scale of the drawing = original dimensions / dimensions of the scale drawing
Scale of the first map : 120 / 3 = 40
The scale is 1cm : 40 km
Scale of the second map : 4 / 3.2 = 1.25
The scale is 1 cm : 1.25 km
Scale of the third map: 50 / 4 = 12.5
The scale is 1 cm : 12.50 km
To learn more about scale drawings, please check: brainly.com/question/980463?referrer=searchResults