First of all, I submitted this late as I was having some technical difficulties before. Sorry.
Viva voce always have been a problem for me as I always have a hard time to explain to people clearly. Though this problem was very easy, it was the explaining part that makes the task a whole lot tougher. I have learned to properly assess the whole problem and using mathematical terms to explain how did I do the problem. My voice and idea must be clear to address the problem. The reason I used screen record as it will be clear for the listeners to see and hear instead of filming where the camera will be moving. It was an enjoyable time to convey my thoughts into words and visuals and it was fun overall.