A parallelogram is a quadrilateral (four-sided figure) that has two pairs of parallel sides.
A rectangle is a parallelogram with four right angles.
If a parallelogram does not have four right angles, then it is not a rectangle. However it is still a parallelogram, as it has two pairs of parallel sides.
A quadrilateral measured 360. if you do not know that you can multiply 360 by 2 because there are 2 triangles in a quadrilateral. Then you subtract 360 by 75,115, and 90. And you will get 80 degrees