find angle aob and angle acb and angle aec=110 degree
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angle AOB = ?
angle ACB = ?
angle AEC = 110°
By the remote interior angle theorem,
AEC = AOB + ACB
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We have two conditions,
AOB = ACB
AOC not equal to ACB
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C-1,
AEC = x + x
110 = 2x
55° = x
AOB = ACB = 55°
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C-2,
AEB = x + y
110 = x + y
Her comes linear equation.
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