Question

Diagnals of quadrilateral abcd bisect each other if angle a =55° what is the value of angle b

Answer 1

Answer:for which class

Step-by-step explanation:4

Answer 2

The quadrilateral is parallogram as it's diagonals biset each other.

If a=55°then c=55°--------(opposite angles are equal)

measure of quadrilateral is 360°

so,a+c+b+d=360°

55°+55°+d+d=360°---------(opposite angles are equal)

110°+2d=360°

2d=360°- 110°

2d=250°

d=125°

also,b=125°