Question

diagonals of a quadrilateral abcd bisect each other.If a=45, then angle b =​

Answer 1

Step-by-step explanation:

We know that the diagonals of a parallelogram bisect each other. Thus, the given quadrilateral ABCD is a parallelogram. ∠A = 45° and ∠B are consecutive interior angles, which must be supplementary..

Therefore,we have

∠A+∠B=180°

45°+∠B=180°

∠B=180°-45°=135°