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प्रश्न
Draw a plain scale for a map whose R.F. is `1/1000` and show 70 metres on it.
आकृती
संख्यात्मक
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उत्तर
Given: R.F. = `1/1000`
1 cm on the map = 1000 cm = 10 metres on the ground.
We need to represent 70 metres on the scale.
Since 1 cm = 10 m,
Length of scale = `70/10` = 7 cm
Drawing the scale:
Draw a 7 cm long line on your paper.
Divide it into 7 equal parts (each 1 cm).
Each main division represents 10 metres.
Divide the first division (leftmost) into 10 equal parts of 1 metre each.
Labelling:
To the right of zero: 0, 10, 20, ..., up to 70 metres
To the left of zero: 2, 4, 6, 8, 10 metres (descending)
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