The last four lines convey the message that those who are not determined and lack confidence face defeat. And those who set their targets and make sincere efforts are not disturbed by any obstacle.
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.