The wingspan of the actual aeroplane is 80 feet.
Given, that the model of an aeroplane has a wingspan of 20 inches and the scale factor is 1 inch = 4 feet.
We need to find what is the wingspan of the actual aeroplane.
The scale factor is a way to compare figures with commonly described but differing scales or measurements.
The wingspan of the actual aeroplane = The wingspan of the model aeroplane × Scale factor.
⇒The wingspan of the actual aeroplane = 20 × 4 feet = 80 feet.
Therefore, the wingspan of the actual aeroplane is 80 feet.
To learn more about scale factors visit:
https://brainly.com/question/22312172.
#SPJ1
