u/InternSubstantial401

I have an interview tomorrow for FLS production engineer - mechatronics & test conpetency. Any advice from current employees or people who have interviewed in the last would be greatly appreciated

https://preview.redd.it/27nvjug29zxg1.png?width=918&format=png&auto=webp&s=74f2175bf7315c82bc48cbbb57c53b929007634b

How do I remove those 2 L shaped pieces, the entire body is hollow and i want the L pieces to be borders that make separate cavities. i tried spliting the body with the faces but i kept getting an error. any help is appreciated

Looking to move to Continuum, reviews look decent online but looking for some more insight if anyone has it