Question

please give answer to be brain list

Answer 1

hey dearie! here is your answer...

OA=OB(radii of same circle)

so, angle(OAB)=angle(OBA)
Let, OAB and OBA=30°

Now, In triangleOAB
OBA+OAB+AOB=180°
30°+30°+AOB=180°
AOB=180°-60°
AOB=120

AOB+reflexAOB=360°
120°+reflexAOB=360°
reflexAOB=360°-120°
=240°

Now, we know that angle subtended by the arc of the circle at centre is equal to twice the angle at any other point of the same arc.

so,APB=1/2AOB
APB=1/2×240°
APB=120°

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Answer 2

Angle apb equal to 120 degrees. Please see the attached file for full explanation