No because it could be a right angled trapezoid.
A rectangle must have 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.
The right angled trapezoids that are not rectangles are not parallelograms.
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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.
Definition I was taught: "A rectangle is a parallelogram with one right angle" Sounds weird but when you think it out, having one right angle in a parallelogram means the other three must be right as well.
A parallelogram with at least one right angle