From the given figure, what can be said about quadrilateral ABCD?
Kite
Given: ∠ACB=∠ABC and
∠DCB=∠DBC
In △ABC,
AB = AC
(∵ Sides opposite to equal angles of a triangle are equal.)
In △DBC,
DC = DB
(∵ Sides opposite to equal angles of a triangle are equal.)
So, ABCD is a quadrilateral in which two pairs of equal-length sides that are adjacent to each other.
Hence, the given figure is a kite.