a geographical map
A contour map, possibly.
It's about 25-30 percent land.
You cannot get the square footage of land which is measured in 5 dimensions. In fact I am not sure where you would find 5-dimensional land.
Millimeters squared (mm²) is a unit of area measurement used to quantify the size of a two-dimensional surface. It is commonly used in various fields, such as engineering, architecture, and manufacturing, to measure small areas, like the surface area of components or materials. For instance, the area of a small piece of land, a printed circuit board, or the cross-sectional area of wires can be expressed in mm².
Land 261914 sq. mi.
A contour map, possibly.
Generally speaking, and if you are talking about representing the whole of earth's surface in one mapping, it would be a globe. But for many purposes a globe would have to be impractically large in order to match the precision of various other maps made for specialized purposes and covering smaller areas.
A world contour map shows the elevation or depth of land and ocean floor features using contour lines. These lines connect points of similar elevation or depth to provide a visual representation of the terrain in a two-dimensional format. World contour maps help in understanding the topography and bathymetry of the Earth's surface.
There can be no answer. Square acre is a measure in 4-dimensional hyperspace. Land is not 4-dimensional and we cannot perceive 4-d space.
Maps distort land masses because it is impossible to accurately represent a three-dimensional object (Earth) on a two-dimensional surface (paper or screen). This distortion occurs because of the challenge in projecting a curved surface onto a flat plane, leading to inaccuracies in representing the true sizes and shapes of land masses. Different map projections are used to minimize distortion in specific areas, but some level of distortion will always be present in map representations.
Planimetric maps are useful for providing visual representation of physical features on a flat surface, facilitating navigation and spatial analysis. They are commonly used in urban planning, land surveying, architectural design, and infrastructure development. These maps depict two-dimensional features such as roads, buildings, rivers, and boundaries with accuracy for planning and decision-making purposes.
Mapmakers have to deal with the challenge of representing a three-dimensional object (Earth) on a two-dimensional surface (map). This leads to distortions in either land shapes or sizes, known as map projection distortion. Mapmakers have to prioritize either preserving shapes or accurately representing sizes when choosing a map projection.
The term that refers to all the land surface of the earth is "Lithosphere."
About one third of the land surface of the earth is desert.
Earth is three-dimensional, but maps are two-dimensional.
Land is above the waterline. No surface currents can flow over land.
About 33% of the earth's land surface is covered by deserts. That's 1/3 of the surface.