Below in the diagram AB and CD are two chords which intersect each other at a right angle. O is the centre of the circle and ∠OAC = 36°. Find the value of ∠ BCD.
1
36°
2
40°
3
38°
4
42°
Below in the diagram AB and CD are two chords which intersect each other at a right angle. O is the centre of the circle and ∠OAC = 36°. Find the value of ∠ BCD.