Question

Please give me the answer as fast as possible I will mark your answer as brainliest.​

Answer 1

Answer:

m(angle ACB)=40°

Step-by-step explanation:

AO =OB. ...radii of same circle

therefore, angle OAB =OBA=80° ...isosceles triangle theorem

therefore, m(arc AB) =80°

m(angle ACB =40° ...inscribed angle theorem

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PLEASE!

Answer 2

Answer:

ANGLE OAB =50

:. AOB IS DUBLE OF ACB

aob and oba =50(isosless Triangle because AC and CB radii of circle)

50+50+aob=180

aob=180-100

aob=80

1/2aob=acb

:. acb=40 ANS

it is help full please tell me .