math 10 (distance of plane from airport)

[S.Hobden]

Airport B is 72 km west of airport A. A plane106 km from B is picked up on a radar at A at an angle of 29.3° east of due north. How far is the plane form A?

38.6°?

 

[mazda]

Is it 77.8km

Using Pythagoras 106^2 - 72^2 = sqare root of awnser = 77.8km

 

[stapel]

How far is the plane form A? 38.6°?

How are you getting that the distance is an angle measure?

Please reply showing your work and reasoning. Thank you.

Eliz.