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Because it does't have 4 equal sides and 4 equal angles as for example such as a square.

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8y ago
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14y ago

It means that it doesn't fulfill the conditions for a regular polygon:

  • All sides must be congruent.
  • All angles must be congruent.
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8y ago

A regular polygon must have congruent sides and congruent angles. An isosceles trapezoid by definition has a pair of parallel sides that are not congruent, so it can't be regular.

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Q: Why is an isosceles trapezoid irregular?
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Related questions

What did you call the quadrilateral with no equal size?

A trapezoid unless it is an isosceles trapezoid otherwise it can be known as an irregular quadrilateral


Is a trapezoid always an isosceles trapezoid?

No, not every trapezoid is an isosceles trapezoid.


What trapezoid is a trapezoid with congruent legs?

An isosceles trapezoid


What are three irregular polygons?

irregular polygons are just polygons that do not have equal angles and side so a scaling and isosceles triangles are 2 and trapezoid is another.


Is an isosceles trapezoid symmetrical?

Yes, an isosceles trapezoid is symmetrical.


How is an isosceles triangle related to an isosceles trapezoid?

how is an isoscelels trapezoid related to a isosceles triangle


What is the same about an isosceles triangle and an isosceles trapezoid?

In an isosceles triangle and an isosceles trapezoid, both base angles are congruent


The diagonal an isosceles trapezoid are what?

The diagonals of an isosceles trapezoid are equal in lengths


Can a cut be made between two parallel sides of an isosceles trapezoid to make two isosceles trapezoids?

No, a cut cannot be made between two parallel sides of an isosceles trapezoid to create two isosceles trapezoids. An isosceles trapezoid has only one pair of parallel sides, so cutting between them would result in two separate shapes, neither of which would be an isosceles trapezoid. The resulting shapes would likely be irregular quadrilaterals or triangles, depending on the location of the cut.


Difference with trapezoid and isosceles trapezoid?

If the two sides which are not parallel have equal lengths, then the trapezoid is called an isosceles trapezoid (standard trapezoid has unequal sides). The base angles in an isosceles trapezoid are equal in measurement, also I know that a trapezoid with two nonparallel sides the same length is called an isosceles trapezoid.


How is the isosceles trapezoid related to the isosceles triangle?

If you extend the two legs of an isosceles trapezoid until they intersect, you get an isosceles triangle.


Is a trapezoid an isosceles trapezoid?

No. It can be but need not be.