a map is to be drawn of r.f. 1:40. construct a scale to read metres , decimetres and centimetres and long enough to measure upto 6 metres
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Explanation: Representative fraction is the ratio of the length of the object represented on drawing to the actual length of the object represented. 2. The scale of a drawing is given as 1:20. ... So the representative factor is that dimension in drawing to actual dimension.
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