I suddenly got this verge of anger that I can’t exude out.

Math was so horrible I can’t believe I didn’t spot that question 7 need to use (n-2)x180!!!! :( I was like staring at the diagram hoping that some answers will pop out. And question 9 I DID IT BEFORE. Its just that my mind went blank (but I managed to finish all questions btw).

Grrr… and there was no time to check. :(

 

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