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Give me hints and logic to solve this geometric problem
The problem is from URI online judge. here is the link of the problem https://www.urionlinejudge.com.br/judge/en/problems/view/1102
//note.I am weak in geometry how can I improve it?How can I find good resources to learn geometry and find geometry problem easy to medium to difficult one? please help me by giving your wise advice and resource link. Thanks in advance.
