Answer:
450 = 50x
Step-by-step explanation:
50x = 450
x = 450 / 50
x = 9
Since ABCD is a parallelogram, the opposite sides will be parallel and equal,

Consider that AC acts as a transversal to the parallel lines AB and CD, so we can write,

So by the ASA criteria, the triangle AED is congruent to the triangle CEB,
Then the corresponding parts of the triangles will be equal,

Hence Proved.
B
if it is not correct sory
Answer:
Step-by-step explanation:
here