Give me hints and logic to solve this geometric problem
Difference between en1 and en2, changed 6 character(s)
The problem is from URI online judge.↵
here is the link of the problem https://www.urionlinejudge.com.br/judge/en/problems/view/1102↵
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//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.

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en2 English zihad18 2020-04-06 23:12:09 6 Tiny change: 'iew/1102\nnote.I am ' -> 'iew/1102\n\n\n//note.I am '
en1 English zihad18 2020-04-06 23:11:07 425 Initial revision (published)