The size of the map lettering in a certain cartographic map is 20 points. Give the equivalent height of a map lettering in mm.
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1in = 72 points\[ 20 points * \frac{1in.}{72points} * \frac{25.40mm.}{1in.} = 7.055555555555556mm. \approx 7.06mm. \leftarrow \text{answer} \]