isischi isischi

21-05-2020
Mathematics

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please help quickly!

What is the measure of Arc CB. How did you determine this?

please help quickly What is the measure of Arc CB How did you determine this class=

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ronhagrid310 ronhagrid310

21-05-2020

Answer:

As shown in picture,

Angle CDF = Angle BDE = 54 deg (pair of opposite angles)

Angle CDB = 180 - CDF = 180 - 54 = 126 deg (BF is a diameter).

=> Arc CB = Angle CDB = 126 deg (property of angle on circle)

Hope this helps!

:)

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