CBSE Class 9 Answered
In the given figure, O is the centre of the
circle. If OAC = 35o and OBC = 40o, find the value of x.
Asked by Topperlearning User | 04 Jun, 2014, 01:23: PM
Expert Answer
Join OC
Since OA = OC
ACO = OAC = 35o
Similarly, OB = OC and OCB = OBC = 40o
ACB = 35o + 40o = 75o
AOB = 2 750 = 1500
(The angle subtended by an arc at the centre is double the angle subtended by it at any point on the remaining part of the circle.)
Answered by | 04 Jun, 2014, 03:23: PM
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