A key and scale are important components in what visual aid

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Huey

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1 September, 13:06

A key and scale are important components in what visual aid

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Gay · Answer 1

Map--a map needs to key to show what symbols mean and a scale to determine distance.

Maps commonly have a key or legend to show what different symbols used on the map mean. The scale is used to determine the map distance and transfer that to the real distance.