Question
Linear scale.
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Answer
(1) A scale in which distances are expressed by drawing graphical scale is called linear scale.
(2) For example,
(3) Compass or blade of grass is used if the ruler is not available for the measurement.
(4) A thread is used for measuring the curved distances between two points shown in a map.
(5) When the map is reduced or enlarged by taking its photo copy, the linear scale drawn on the original map changes as per the changing size of the map.
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