In the given figure O is the centre of the circle and AD is the tangent to the circle at A. If ∠CAD = 55° and ∠ADC = 25° then find ∠ABO

In the given figure O is the centre of the circle and AD is the tangen

1.	In the given figure O is the centre of the circle and AD is the tangent to the circle at A. If ∠CAD = 55° and ∠ADC = 25° then find ∠ABO
A.	10°
B.	15°
C.	25°
D.	20°
Answer» B. 15°

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In the given figure O is the centre of the circle and AD is the tangent to the circle at A. If ∠CAD = 55° and ∠ADC = 25° then find ∠ABO

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