Answer:
How to do that it's a trick question you leave it like that.
Step-by-step explanation:
Since the cross section is constrained to be perpendicular to the base, the shape of it is constrained to be a ...
Rectangle
_____
That rectangle may be a square, but is not required to be.
Triangles add up to 180. So add up the two angles given, and subtract that from 180. That will be x!
