That would depend on the angle next to it.
angle sum of a parallelogram
Yes a parallelogram with a right angle is a square.
parallelogram
A square is a type of parallelogram.
The questions doesn't make sense. An angle isn't a parallelogram. Parallelograms are types of shapes while an angle are to rays.
A right angle.
A parallelogram with one right angle has four of them. The name for this figure is a rectangle.
No, a parallelogram is made from four lines whereas an obtuse angle comprises two lines.
No, it does not. But an angle and the angle opposite it are always equal.
Normally, a parallelogram does not have a right angle.
parallelogram
A rectangle.