4. TBQ - Find the measure of ADC

In fig., \(A, B\), and \(C\) are three points on a circle with Centre \(O\) such that \(∠BOC=33^°\) and \(∠AOB=51^°\). If \(D\) is a point on the circle other than the arc \(ABC\), find \(∠ADC\).

 

 

\(∠ADC=\) \(^{\circ}\)