Margie's mother summoned the County Inspector because Margie's mechanical teacher was malfunctioning. It persistently administered Geography tests to Margie, and her performance deteriorated with each attempt. Filled with concern, Margie's mother sought the intervention of the County Inspector.
In Fig. 9.26, A, B, C and D are four points on a circle. AC and BD intersect at a point E such that ∠ BEC = 130° and ∠ ECD = 20°. Find ∠ BAC.