Class 11 Geography Chapter 4: Map Projections
Why are map projections necessary?
Map projections are necessary because it is impossible to accurately represent the 3D curved surface of the Earth on a 2D flat map without some distortion. Map projections allow us to create useful flat maps for navigation, planning, and analysis.
What are the three main properties of map projections?
The three main properties of map projections are:
- Equivalence: Preserving the relative size of different areas
- Conformality: Preserving the shape of small areas
- Equidistance: Preserving accurate distances from the map center to other locations
What are the main types of map projections?
The main types of map projections are:
- Cylindrical projections
- Conical projections
- Zenithal (azimuthal) projections
What are map projections?
Map projections are methods used to represent the Earth’s curved surface on a flat map.
Why are there different types of map projections?
Different projections exist because it’s impossible to accurately represent the Earth’s surface in two dimensions without distortion, leading to various projection methods suited for different purposes.
Chapter 4: Map Projections| Class 11 Geography Practical Work
The Earth is a 3D sphere, but maps need to be 2D. Map projections are mathematical transformations that convert the curved Earth’s surface to a flat map, though this inevitably involves some distortion.
In this article, we will look into the topic of Map Projections in detail.
Chapter 4: Map Projections| Class 11 Geography Practical Work