On a map, an area of cm represents an actual area of km. What actual distance, in km, is represented by a length of cm on the map?

Answer and explanation

Correct answer: B.

  1. Step 1: Determine the area scale ratio: represents , which means represents .
  2. Step 2: Take the square root of the area scale factor to find the linear distance scale: on the map represents .
  3. Step 3: Multiply the linear scale by : .
Answer
.

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