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there's no such thing. "quad" means four, "lateral" means side. A quadrilateral must and always had only FOUR SIDES! however, a shape with three sides is a triangle.

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15y ago
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Q: What do you call a quadrilateral with 3 equal sides?
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Related questions

why is a triangle is not a quadrilateral?

A triangle can't be a quadrilateral because quadrilateral means it has to have 4 sides and they have to be equal and a triangle can only have 3 sides and doesn't have to be all equal sides. * * * * * Mainly correct, but the sides of a quadrilateral do not have to be equal.


Why is a triangle not a quadrilateral?

A triangle can't be a quadrilateral because quadrilateral means it has to have 4 sides and they have to be equal and a triangle can only have 3 sides and doesn't have to be all equal sides. * * * * * Mainly correct, but the sides of a quadrilateral do not have to be equal.


Does a qudrilateral have 3 congruent sides?

A quadrilateral triangle has three equal sides.


Does a quadrilateral triangle have exactly 2 congruent angles?

Quadrilaterals are not triangles, and there is no such thing as a quadrilateral triangle. Perhaps you mean equilateral, in which case, it has 3 equal angles and 3 equal sides; the word equilateral actually means equal sides. And quadrilateral means four sides. Triangle means 3 angles.


What shape has doesn't any 3 sides or any angles that are equal?

An irregular quadrilateral.


What is the name for a quadrilateral with 3 equal sides and only one pair of parallel sides?

i am not really sure but i think it is the isosceles triangle


What shape is a quadrilateral with 3 equal sides but no parallel sides?

Its 4th side would have to be circular in order to comply with the given requirements.


What do you call a triangle in which all three sides are equal?

An equilateral triangle has 3 equal sides and 3 equal 60 degree angles.


3 names for a polygon that has 4 equal sides and no right angles?

A rhombus, an equal sided parallelogram or an equal sided quadrilateral with no right angles.


Is a iscoseles triangle a quadrilateral?

NO, a triangle has 3 sides (tri = 3 ) . A quadrilateral has 4 sides ( quad = 4 )


Is atriangle a quadrilateral?

No, a triangle is not a quadrilateral because a quadrilateral has 4 sides! A triangle only has 3 sides, making it a polygon!:)


What quadrilateral has 3 equal sides?

Many different types of quadrilaterals can have three equal side lengths. as long as it is a closed shape that has four sides, it is considered a quadrilateral, but not all quadrilaterals have names. A triangle with three equal side length would be called an equilateral triangle.