एक चतुर्भुज ABCD में angleC = 72^(@) और...

एक चतुर्भुज ABCD में `angleC = 72^(@)` और `angleD = 28^(@)` है। `angleA` और `angleB` के समद्विभाजक O पर मिलते हैं। `angleAOB` की माप क्या होगी ?

A

`48^(@)`

B

`54^(@)`

C

`50^(@)`

D

`36^(@)`

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