I answered question 1. Angle is my strong point, so I was able to understand the question quickly, but after a few tries, i found out the answers. I learnt a very important lesson from this task. It is that, it all lies in the way you understand the question. Now the problem was that how am I going to express it ? So first I went to take pictures of each frame, each time I moved, as I was writing the working, on how to derive the answer. I had to capture a lot of images, so that, I can put all of them together, in to a video. The next challenge was my explanation must be in the correct sequence as my video. I had to redo it several times, as my timing wasn't correct. For example, I will be explaining the part when it had just ended, so I needed to redo it and set my speed, so as to the video's speed. The question I chose had 3 different parts, so there are lots of working to be shown, but I did not show everything, as I would save the time, by saying it out while I show the working.