Respuesta :
Answer:
find the perimeter and multiply it to a decent size to see what you would need to do to enlarge the map
Step-by-step explanation:
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The area of the enlarged map is gotten by multiplying the square of the scale factor by 21 in²
What is scaling?
Scaling is the increase or decrease in the size of a figure by a scale factor so as to create an image.
If a map is enlarged by a scale factor. To determine the area of the enlarged map, if the original map has an area of 21 in²:
Area of enlarged map = scale factor² * 21 in²
The area of the enlarged map is gotten by multiplying the square of the scale factor by 21 in²
Find out more on scaling at: https://brainly.com/question/25324744