A square is a right angled parallelogram with 4 right angles and all opposite sides parallel.
It is a right angled parallelogram.
A right angled parallelogram.
A parallelogram has 0 or 2 acute angles. If the parallelogram happens to have four right-angled corners, it is still a parallelogram (and a rectangle), but no acute angles.
Yes, but only if the parallelogram has right angled vertices.
Some of them are: oblong, quadrilateral, right angled parallelogram, a shape with opposite parallel sides and then their is the golden rectangle.
It is a right angled parallelogram.
A right angled parallelogram.
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.
If they are congruent right angle triangles then just join them together side by side to form a parallelogram.
A parallelogram has 0 or 2 acute angles. If the parallelogram happens to have four right-angled corners, it is still a parallelogram (and a rectangle), but no acute angles.
You can have a trapezium, a kite or an arrowhead with right angled vertices, as well as a completely irregular quadrilateral. In fact, any kind of quadrilateral other than a parallelogram (or rhombus) can have a right angled vertex.
Yes, but only if the parallelogram has right angled vertices.
A Rhomb
Some of them are: oblong, quadrilateral, right angled parallelogram, a shape with opposite parallel sides and then their is the golden rectangle.
A right angled quadrangle! It can be a trapezium, kite, arrowhead, rectangle or square. It cannot be a parallelogram or rhombus - other than a rectangle or square respectively.
A rectangle can be any four-sided plane figure with four right angles, including a four-sided polygon, a quadrilateral, a rhombus, a quadrangle, and a right-angled parallelogram,
A rhombus is an oblique-angled equilateral parallelogram, but not a square. Explanation: Oblique-angled means that there can be no perpendicular angles like in a square.