Since AD is the bisector of the BAC angle, the BAD angle is equal to the DAC angle, then the BAC angle = 2 * BAD = 2 * 26 = 52.
The ACH triangle is rectangular, since the CH is the height in the side of AB, then the angle ACH = 180 – AHC – CAH = 180 – 90 – 52 = 38.
In the AOC triangle, the angle AOC = 180 – CAO – ACH = 180 – 38 – 26 = 116.
Answer: The AOC angle is 116.
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