No, parallelograms and rectangles cannot have reflex angles. This is because
1. The sum of their interior angles must be 360 degrees.
2. Opposite angles must be equal.
3. If it were the case that a reflex angle existed, two angles would have to be greater than 180 by 2.
4. But by 1, the two angles would now sum over 360, and that cannot occur for a four-sided polygon.
If you mean if one of the angles is a right angle, then yes, because a rectangle is the only option left if it is to remain a parallelogram.
a rectangle has four right angles and opposite sides are all the same length This means that a parallelogram is not always a rectangle, but a rectangle is always a parallelogram, by definition.
true.
Parallelogram, rectangle, rhombus and square.Parallelogram, rectangle, rhombus and square.Parallelogram, rectangle, rhombus and square.Parallelogram, rectangle, rhombus and square.
Reflex angle
You can never have a reflex angle on the inside of a rectangle. But it always has 4 on the outside.
parallelogram
A rectangle is not an angle at all. It's a flat shape that looks like a box. A rectangle can never have a reflex angle inside it. But it always has four of them on the outside.
A rectangle.
parallelogram!
a rectangle
If you mean if one of the angles is a right angle, then yes, because a rectangle is the only option left if it is to remain a parallelogram.
A rectangle is a parallellogram with one right angle; A parallelogram is a quadrilateral with opposite sides equal and parallel.
No because it could be an irregular quadrilateral that includes a right angle. A rectangle has four right angles.Yes, a parallelogram with a right angle is always a rectangle. In fact, in my geometry book, some 55 years ago, such was the definition of rectangle.A parallelogram with one right angle will always have four right angles.It is true that you can draw an irregular quadrilateral with a right angle which is not a rectangle but the figure will not be a parallelogram.
A parallelogram with one right angle has four of them. The name for this figure is a rectangle.
A parallelogram with a right angle is a rectangle.
Rectangle