Answer: yes it is safe for Carmen use.
Explanation:
wheel chocks are usually wedge-shaped items which are carefully placed behind the wheels of a vehicle. This is done to prevent any unnecessary and accidental movements of the vehicle. What a wheel check does is to prevent a vehicles from rolling, slipping, shifting or sliding when not in operation. The wedge available is shaped like a right angle triangle which means the wedge is at an angle of 90°, Carmen should make use of it as it would be able to hold the vehicle.