Question

The quarter sheets are also called 1°x1° sheets.

Answer 1

Answer:

The Survey of India used systematic arrangements to draw topographic maps. In quarter-inch maps, each sheet extends over 6° of longitudes and 4°of latitudes in which elevation is shown in meters. In quarter-inch maps, a scale of 4 miles is taken to an inch. It is also known as a one-in-million sheet map.

On the other hand, when the degree sheets sub-divided into 16 equal sheets, each representing an extent of 15'. These smaller sheets are termed as one-inch sheets. It shows the scale of one inch to a mile

Explanation:

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Answer 2

Answer:

The extend of each quarter sheet is 1° of latitude and 1° of latitude therefore these are also known as quarter sheets