Answer :
Final answer:
The numbers on the runway ends indicate they are oriented approximately 90 degrees (East) and 270 degrees (West) about magnetic north, helping pilots during takeoff and landing.
Explanation:
The numbers 9 and 27 on the approach end of the runway indicate that the runway is orientated approximately 90 degrees and 270 degrees respectively, about magnetic north. These numbers represent the runway headings to the nearest ten degrees. So, a runway with the number 9 means it is oriented east (90 degrees), and a runway with the number 27 is oriented west (270 degrees). Pilots use these numbers to align their aircraft during takeoff and landing.
