Math and Arithmetic
Geometry

# Are all paralleograms rectangles?

###### Wiki User

Some paralleograms are rectangles. A right paralleogram is a rectangle. In the case of a rectangle, all angles formed by the sides are right angles and opposite sides are parallel. The sum of adjacent angles in a parallelogram is 180 degrees.

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## Related Questions

No. Trapezoids are not parallelograms at all.

Probably the main one is that all quadrilaterals are rectangles. This isn't true- they can be paralleograms and trapezoids. A quadrilateral just means that something had four sides. So anything that adds to that, or takes away from it, is therefore false.

Yes, but only when the shape is a rectangle (or square). Other paralleograms will have one diagonal longer than the other. And yes, rectangles and squares ARE parallelograms.

They are all rectangles (or 2 squares and 4 rectangles).They are all rectangles (or 2 squares and 4 rectangles).They are all rectangles (or 2 squares and 4 rectangles).They are all rectangles (or 2 squares and 4 rectangles).

All squares are rectangles. All rectangles aren't squares.

Yes, all Squares are rectangles, but not all rectangles are squares because it needs to have all equal sides.

Definitely. You can pick an area, and there are an infinite number of parallelograms, including an infinite number of rhombuses and an infinite number of rectangles, all with different shapes, that all have that same area. But there's only 1 square, and only 1 circle !

Yes, all rectangles are parallelograms. However, not all parallelograms are rectangles.

No. Only some parallelograms are rectangles. But all rectangles are parallelograms.

No but all squares are a rectangles

All rectangles are quadrilaterals. A quadrilateral has 4 sides; all rectangles have 4 sides; thus all rectangles are quadrilaterals.

True. All squares are rectangles, but not all rectangles are squares.

All squares are rectangles also, but not all rectangles are squares, only equilateral rectangles are considered square.

No, but all squares are all rectangles.

That depends on if the rectangles are touching or if you are asking if different kinds of rectangles are squares. But, either way, all rectangles are squares, but not all squares are rectangles.

All rectangles are indeed parallelograms.

Yes, but all rectangles are not square

Not all quadrilaterals are rectangles. Some quadrilaterals are rectangles, and the rest are not. However, all rectangles are quadrilaterals.

Yes all rectangles are parallelogram but all parallelogram cannot be rectangles.

No not all rectangles are similar because the proportions are different.

Yes. All rectangles are also parallelograms, but not all parallelograms are rectangles.