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16-01-2020
Mathematics

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Does anyone know the answer?

Does anyone know the answer class=

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16-01-2020

Answer: (17/90)π radian

Step-by-step explanation:

Arc length of AC = radius × angle APC

angle APC = Arc length of AC / radius

angle APC = ((68/15)π / 12) radian

angle APC = (17/45)π radian

Now,

2 × Angle ABC = Angle APC

Angle ABC = Angle APC / 2

Angle ABC = (17/45)π / 2

Angle ABC = (17/90)π radian

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