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Seudónimo
18-04-2021
Mathematics
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gayanepoghosyan
gayanepoghosyan
18-04-2021
Answer is angAOC=90
Is A O B is in one line so
2a+62+54-a+5a-20=180
6a=180-62+20-54=84
a=14
angAOC= 2a+62=90
angCOD=54-a=40
angDOB=5a-20=50
SO angAOC is the biggest
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