Partially Inscribed Triangle

Geometry Level 3

Triangle ABCABC has vertices BB and CC on a semicircle centered at O,O, as shown, with ABAB tangent to the semicircle at BB and ACAC intersecting the semicircle at point D.D.

If BAC=78\angle BAC = 78 ^\circ(in red) and ODC=74\angle ODC = 74 ^\circ(in green), what is the measure of BCA\angle BCA (in blue) in degrees?

Note: The figure is not drawn to scale.

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