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To be a parallelogram, the figure needs both sets of opposite sides to be parallel. A rectangle needs to have four right angles. This means the rectangle has to be a parallelogram. However, you can have opposite sides parallel without having right angles, as long as opposite angles are equal to each other,

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โˆ™ 2015-02-24 17:03:32
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Q: Why are all rectangles examples of parallelograms but all parallelograms are not rectangles?
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Related questions

Are some parallelograms rectangles?

In fact, some are rectangles, but not all are.


Are all rectangles parallelagrams?

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


Are all parrellelograms rectangles?

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


Is every property of parallelograms also a property of all rectangles?

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


Is there a rectangle that isn't a parallelogram?

No. All rectangles are parallelograms. However, not all parallelograms are rectangles.


Are there some parallelograms that are rectangles?

All rectangles are parallelograms, so yes there are some.


Can a parallelogram also be a rectangle?

Some parallelograms are rectangles; all rectangles are parallelograms.


All rectangles are parallelograms. are all parallelograms rectangles explain.?

All parallelograms are not rectangles. The angles of a parallelogram need not be right angles and so the figure need not be a rectangle.


Are all rectangles parallaelgrams?

All rectangles are parallelograms.


Are all rectangles parallegrams?

All rectangles are indeed parallelograms.


Are all parallelograms and rectangles the same?

No. Rectangles are parallelograms with all right angles, while parallelograms just have 2 sets of parallel lines.


Can a parallelogram be a rectangle and a square?

the three special quadrilaterals that can be a parallelogram are a rectangle, a square, and a rhombus Actually, this is incorrect. All squares are rectangles. All rectangles are parallelograms. Therefore all squares are parallelograms. But not all parallelograms are rectangles. And not all rectangles are squares.

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