Answer:
~ 2 kilometers in length of the actual path ~
Step-by-step explanation:
Let us plan out our steps, and solve for each:
1. Given the information, let us create a proportionality as such:
1 = 10,000 ⇒ x - centimeters in length of actual path
20 x
2. Now let us cross multiply, and solve through simple algebra for x:
10,000 * 20 = x,
x = 200,000 centimeters of the width of the item in reality
3. The answer demands in km, so let us convert 200,000 cm ⇒ km:
200,000/100,000 = 2 kilometers in length of the actual path