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GMAT Data Sufficiency (DS) | Re: In the figure AB and CD are two diameters of circle. Interse

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desaichinmay22 wrote:

smyarga wrote:
Since, CD and AB are two diameters of the circle, so their intersection is the centre. Let's denote this centre O. Angle CEB is inscribed, and angle COB is corresponding central angle (arc CAB). The value of angle COB=180+48=228 degrees. The measure of inscribed angle is always half the measure of the central angle. Angle CEB is equal =228/2=114 degrees.

The correct answer is A.



Hi,

I thought angle COB is 180-42=138 degrees. You have derived angle COB of 228 degrees.
Can you
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