360° 180 180°Therefore, by Theorem 10.12, the quadrilateral EFGH is – InterviewSolution

1.	360° 180 180°Therefore, by Theorem 10.12, the quadrilateral EFGH is cyclic.EXERCISE 10.51. In Fig. 10.36, A,B and C are three points on acircle with centre O such that Z BOC-30 andZ AOB-600. If D is a point on the circle otherthan the arc ABC, find ZADC.weet
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