Answer:
The magnitude of the displacement of the car = 16.97 miles (North-West of A)
Step-by-step explanation:
Attached to this answer is a diagram to give you a visual on what is going on i the question
Let the magnitude of the car's displacement be 'd'
The triangle formed is a right angled triangle, using the Pythagoras theorem:
d² = 12² + 12² (Hyp² = Opp² + Adj²)
d² = 144 +144 = 288
d =√ 288 = 16.97 miles
Therefore the magnitude of the displacement of the car = 16.97 miles (North-West of A)