Without actual numbers, it's impossible to tell for sure. However, it looks like a blue tiny square has been removed to be placed on the outside of figure B. If this is the case, then we can move that square back into place to get the same overall large square.
In short, figure A and figure B have the same blue shaded area. All figure B appears to do is move things around.
Answer:
Step-by-step explanation:
Let the unknown angle be x
As the interior angles in a triangle are added up to 180°
Hope this helps you.
Let me know if you have any other questions:-)