∠ВОД=х
∠ВОС= х+18
∠АОВ = 2х
2х+(х+18)=180
3х+18=180
3х=180-18
3х=162
х=54
∠ВОС = 54+18= 72
∠АОВ= 2*54=108
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∠ВОД=х
∠ВОС= х+18
∠АОВ = 2х
2х+(х+18)=180
3х+18=180
3х=180-18
3х=162
х=54
∠ВОС = 54+18= 72
∠АОВ= 2*54=108