are diagonals in a kite congruent?
THEOREM: If a quadrilateral is a kite, it has one diagonal forming two congruent triangles. THEOREM: If a quadrilateral is a kite, it has one diagonal that bisects a pair of opposite angles. ... THEOREM: If one of the diagonals of a quadrilateral is the perpendicular bisector of the other, the quadrilateral is a kite.