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Because a rectangle has 4 equal interior right angles whereas a parallelogram does not have 4 equal interior angles but they are both in the same class as 4 sided quadrilaterals.

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8y ago
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9mo ago

A rectangle cannot be a parallelogram because a parallelogram has opposite sides that are parallel and equal in length, while a rectangle has all angles equal to 90 degrees. Thus, a rectangle is a specific type of parallelogram that has the additional property of having all angles equal to 90 degrees.

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Q: Why can't a rectangle be a parallelogram?
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Related questions

How does a parallelogram relate to a rectangle?

A rectangle is a parallelogram but a parallelogram is not a rectangle. A rectangle needs all 90 degree angles but a parallelogram dosnt.


How is a parallelogram and a rectangle the same?

A rectangle is a parallelogram but a parallelogram need not be a rectangle and so they are not the same.


Why can't I draw a square that isn't a parallelogram?

you cant because a square, rectangle, and a any other shape with parallel lines is a parallelogram. :)


Is a parrallelogram a rectangle?

Yes, a rectangle is a special case of a parallelogram, where each of the 4 angles = 90°


Is there a rectangle that is not a parallelogram?

Nope, A rectangle is a type of parallelogram...


How is a parallelogram a rectangle?

A parallelogram is not a rectangle. However, a rectangle is a parallelogram because it has two pairs of opposite sides that are parallel


Is a parallelogram a rectangle also?

A rectangle is a parallelogram, but a parallelogram is not necessarily a rectangle. This is because a parallelogram can be so many other things, like a rhombus or a square.


Why do the parallelogram and the rectangle have the same area?

a parallelogram is a tilted rectangle


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A rectangle will always be a parallelogram.


What is the difference between a rectangle and a parallelogram?

A parallelogram is slanted. A rectangle is not.


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Is a rectangle always going to be a parallelogram?

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