Question 1204534
<br>
Not enough information....<br>
The truck will clearly fit through if the opening is rectangular.<br>
If the opening is in the shape of a parabola then we would need to know the width.<br>
And the opening might be elliptical, or something else....<br>
If you have ALL the information needed for solving the problem, then re-post, showing all of that information.<br>