Question

Diagonals of a quadrilateral
ABCD bisect each other. If ZA =
55°, then zB = *
A) 55°
B) 115°
C) 120°
D) 125°​

Answer 1

Since the diagonals of the quadrilateral bisect each other, therefore it is a parallelogram.

So, angle A + angle B = 180° (adjacent angles)

55°+angle B = 180°

ZB = 125 degree