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In the given figure, PA and PB are two t...

In the given figure, `PA` and `PB` are two tangents to the circle with centre `O`. If `/_APB=50^(@)` then what is the measure of `/_OAB`.

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`/_APB=2/_OABimplies/_OAB=(1)/(2)xx/_APB=(50^(@))/(2)=25^(@)`
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