Without seeing the map, we cannot answer this question. Your map should indicate the scale, and the gridlines will be labeled with coordinates from which you can figure out how far apart they are.
that the elevation of the area varies
Some topographic maps show that. Or all you can tell is the closer they are the harder the climb and the further apart the easier.
Apart from sketch maps, maps are to scale. The distance on a map is a ratio of the distance in the real world.
The distance can range between 893 million and 964 million kilometers apart.
Based on 2 degree separation, at this distance above the surface, about 22,300 miles, they are about 920 miles apart
3km is equal to 300000 centimeters. 300000 divided by 180000 is 1.6666667 centimeters.
We have no idea, and can't calculate it with the information given in the question."2cm" is not a scale. A scale tells what real distance is represented by 2cm on this map.
They show a narrow area
2 1/ 2 Centimeters == ==
nearly flat
nearly flat
gentle slopes
The radius of a sphere with antipodes 8 cm apart is 4 cm. The distance between the antipodes of a sphere is the diameter of the sphere. The radius is half the length of the diameter.
An angle has no distance and so there is no angle which is the same distance apart.
that the land is composed of many mountains
This indicates steeply ascending or descending terrain. The distance between the lines indicates different elevations, so lines that are closer together indicate steep places while lines that are farther apart indicate smoother terrain.
Distance is a numerical description of how far apart objects are