Question

find the value of x
​

Answer 1

Answer:

< x = 90

Step-by-step explanation:

□ ABCD IS a quadrilateral

< B = < D

< B = 135

Truangle AB'B IS a right angle triangle

< B' = 90 , < A = 45 < AB'B = 45

< X= < B - <ABB'

<X = 135 - 45 = 90