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They can, but then it would actually be called a square, not a rectangle.
However, a square is simply a special case of rectangle.

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Q: Why don't rectangles have 4 congruent sides?
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Related questions

Do all rectangles have four cogruent sides?

no rectangles dont have 4 congruent side, otherwise it would be a square or a rhombus.


Do all rectangles have 4 congrent sides?

No. Usually only opposite sides are congruent.


Can a rectangle be a square explain?

a rectangle has 4 right angles. A rhombus has four congruent sides. A square has four right angles and four congruent sides. All squares are rectangles because all rectangles have 4 right angles, and all squares have four right angles. But not all rectangles are squares because not all rectangles have congruent sides.


Are all figures with 4 congruent sides a square?

All figures with four congruent sides are rhombuses. All figures with four congruent angles are rectangles. Any shape that is both a rhombus and a rectangle is a square.


Are all rectangles perpendicular?

Yes. The basic definition for a rectangle is 4 sides, four right angles(perpendicular), and opposite sides are congruent.


Does a quadrilateral have congruent angles?

A quadrilateral is a plane figure with four straight sides and does not necessarily have any congruent angles. Some quadrilaterals such as, squares, rectangles, rhombuses, and parallelograms do have congruent angles.


How is a square different form a rectangle?

you are probably referring to the theory that all rectangles are squares but not all squares are not rectangles. the answer is simple; a rectangle has two sets of parallel line and 4-right angles, where as a square has the same description with one extra detail that it has 4-congruent sides as well. the reason that a square is a rectangle is because a square fits the description of two parallel sides and 4-right angles. A not all rectangles fit the description of a square because it does not have 4 congruent sides.


How come not all rectangles are squares?

The characteristics for a rectangle is that it has to have 4 right angles and 2 pairs of congruent and parallel sides. Squares have to meet these requirements and also have to have all sides congruent. All rectangles meet to the rectangle's standard, but not all of them meet up to a square's standard. Therefore, not all rectangles are squares. Or, in a more simplified version: squares are a type of rectangle, but rectangles are not a type of squares, therefore not all rectangles are squares.


What is the property of all rectangles?

They are 4 sided quadrilaterals and have 4 right angles with a pair of opposite parallel sides but it is not a square.


Does a rhombus have 4 congruent sides and four congruent angles?

A rhombus has 4 congruent sides, but it does not necessarily have 4 congruent angles.


Poloygon with 4 sides of the same length?

You must be talking about a rhombus.In a rhombus, all four sides are congruent, opposite angles are congruent, and opposing sides are parallel. Rectangles, squares, and kites must be rhombi, and rhombi must be parallelograms, quadrilaterals, and polygons.


What quadrilateral has 2 congruent angles and 4 congruent sides?

No it has 4 congruent angles and 2 sets of congruent sides