Answer:
x = 225 degrees
Explanation:
We know that the top angle of the triangle is also 45 since they are congruent sides
The top angle of the rectangle is going to be 90 since it's a right angle
90 + 45 = 135
a full circle = 360 degrees
to find x we have to - 135 since 135 degrees is used up from the circle
360-135
225
hope this helps