ABCD is a cyclic quadrilateral whose diagonals intersect at a point E.

1.	ABCD is a cyclic quadrilateral whose diagonals intersect at a point E. If ∠DBC=70∘ and ∠BAC=30∘, then ∠BCD= ___. Further, if AB = BC, then ∠ECD = ___.
Answer» ABCD is a cyclic quadrilateral whose diagonals intersect at a point E. If $∠ D B C = 70^{\circ}$ and $∠ B A C = 30^{\circ}$ , then $∠ B C D$ = ___. Further, if AB = BC, then $∠ E C D$ = ___.

ABCD is a cyclic quadrilateral whose diagonals intersect at a point E. If ∠DBC=70∘ and ∠BAC=30∘, then ∠BCD= _. Further, if AB = BC, then ∠ECD = _.

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ABCD is a cyclic quadrilateral whose diagonals intersect at a point E. If $∠ D B C = 70^{\circ}$ and $∠ B A C = 30^{\circ}$ , then $∠ B C D$ = ___. Further, if AB = BC, then $∠ E C D$ = ___.

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ABCD is a cyclic quadrilateral whose diagonals intersect at a point E. If ∠DBC=70∘ and ∠BAC=30∘, then ∠BCD= ___. Further, if AB = BC, then ∠ECD = ___.

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ABCD is a cyclic quadrilateral whose diagonals intersect at a point E. If ∠DBC=70∘ and ∠BAC=30∘, then ∠BCD= _. Further, if AB = BC, then ∠ECD = _.