Quadrilateral angles

Find angle x:

1. Quadrilateral with angles 80°, 110°, 90°, x
2. Parallelogram with one angle 65°. Find the other three angles.
3. Kite with angles 100°, 40°, x, x. Find x.
4. Isosceles trapezium with angles 70°, 70°, x, x. Find x.

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