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Air traffic controllers and pilots need a way to refer to runways that is consistent among different airports.

Runways are named based on the angles they form with due north, measured in a clockwise direction. These angles are called bearings.

The bearing of a runway is divided by 10 to find the runway number.

1. Why is it important use a consistent runway naming scheme?

2. The bearing of an unlabeled runway is 50 degrees and 230 degrees. What are the missing runway numbers?

(Please label your answers with a 1. and 2.)​