(a)[1]
Determine angle $ABC$.
(b)[2]
Determine angle $BOC$.
(c)[1]
Determine angle $BDC$.
Mathematics 4024 · O Level · Circle theorems I
Circle theorems I — practice question
Points $A$, $B$ and $C$ lie on the circle with centre $O$. The lines $AB$ and $AC$ are tangents to the circle. Angle $BAC = 38^\circ$.