1. A quadrilateral ABCD is inscribed in a circle, so that AB is the diameter of the circle.
IF ZADC = 130°, find ZBAC.
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Step-by-step explanation:
We know that sum of angles in a quadrilateral is 360°
therefore <ADC+<BAC+<ACB+<ABC=360°
130°+90°+(<BAC<+180-<BAC)=360
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