ABCD is a cyclic quadrilateral, in which ∠DBC =80∘ and ∠BAC = 40∘ . Find ∠BCD.

ABCD is a cyclic quadrilateral, in which ∠DBC =80∘ and ∠BAC =

1.	ABCD is a cyclic quadrilateral, in which ∠DBC =80∘ and ∠BAC = 40∘ . Find ∠BCD.
Answer» ABCD is a cyclic quadrilateral, in which $∠$ DBC =80 $^{\circ}$ and $∠$ BAC = 40 $^{\circ}$ . Find $∠$ BCD.