4 they have 4 sides and 4 angles
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.
Normally, a parallelogram does not have a right angle.
A rectangle.
Yes, a quadrilateral ABCD can be a parallelogram if angle D plus angle B equals 180 degrees. In a parallelogram, opposite angles are equal, and consecutive angles are supplementary (their sum equals 180 degrees). Therefore, if angle D and angle B are supplementary, it is consistent with the properties of a parallelogram. Thus, the condition does not contradict the definition of a parallelogram.
A parallelogram, in general, has no right angles.
angle sum of a parallelogram
two (2)
Yes a parallelogram with a right angle is a square.
A square is a type of parallelogram.
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.