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Q: If two of the line segments of a polygon are parallel what is the least number of sides it could have?
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Which shapes have no parallel sides?

The only polygon that absolutely positively never has any parallel sides is a triangle. Any other shape comprised of four or more straight line segments could have one or more pairs that are parallel.


Does a triangle have a set of parallel lines?

No. it is the only polygon that can not have parallel lines all though any regular polygon with an odd number of lines will have no parallel lines If three points were in a straight line it could be argued that these formed a triangle with parallel sides, though really it would be just a line; or if we had a triangle with infinite height the sides would be parallel. In any other case, no.


What is a four-sided polygon with opposite sides parallel?

A four-sided polygon with opposite sides parallel could be a square, a rectangle, or a rhombus.If it has one pair of opposite, parallel sides, then it is a trapezoid. If it has two pairs of opposite, parallel sides, then it is a parallelogram.


Why is a circle a polygon?

It takes an infinite number of sides to make a polygon into a circle, but you could still consider a circle to be a limiting state of the polygon, which all polygons approach as the number of sides increase.


What is it called if a polygon has matching sides?

Unfortunately, your question isn't accurate enough for us to know what you mean. From what I can tell, you may be referring to matching lengths or sides that face the same way. There are two primary types of polygon, irregular polygons and regular polygons.Regular polygons have equal lengths all around and therefore (if this is the right case), they have 'matching sides'. However, if you're looking for sides that are facing the same way, these are called 'parallel lines' or 'parallel line segments' if the shape has two endpoints.Regular polygons with an even amount of sides will have parallel sides. However, regular polygons with an odd number of sides do not, until you go into a very far off range (like 5001-gons). To the human eye, this would look like a circle. In practice, people would see that the tiny line segments could be parallel.Except simple logic denotes that even though the line segments LOOK parallel, our eyes can't see bending at a microscopic scale. Therefore, we can assume that the line segments would NOT be parallel. If you tried extending the lines, it would eventually (after many miles) meet.Irregular polygons are a completely different matter, though.The definition for a polygon is a two dimensional shape with more than one side, due to the prefix poly-, and -gon meaning two dimensional.-hedron would make it three dimensional.Irregular polygons could be anything, as long as it is two dimensional.The sides of these polygons could be any length, have any bearing in relation to another and have different interior and exterior angles.I can conclude that regular polygons do have sides of equal length and have parallel sides when there are an even number of sides overall. At a massive-side scale, it can be hard to identify parallel lines in polygons, but simple theorems keep things in check. Irregular polygons could satisfy one point or the other or neither (since having both would result in a parallelogram or even a rhombus).

Related questions

Which shapes have no parallel sides?

The only polygon that absolutely positively never has any parallel sides is a triangle. Any other shape comprised of four or more straight line segments could have one or more pairs that are parallel.


What is the name of a polygon which could not have parallel sides?

Rhombus


What has 2 parallel bases that are not polygon?

It could be a cylinder or a cuboid


Which geometric shape could not be drawn using both perpendicular line segments and parallel line segments?

A circle.


What is a simple closed figure made up of line segments called?

a polygon


What shape has 4 equal sides and 2 parallel sides?

A trapezium could do that. Moreover, I think any polygon with an even number of sides also could.


Which shape could never have parallel lines?

A irregular polygon will not have any parallel lines. :)* * * * *Not true. A rhombus is an irregular polygon and it has two pairs of parallel line!An irregular pentagon can have parallel lines.However, a triangle or a conic section cannot.


Does a triangle have a set of parallel lines?

No. it is the only polygon that can not have parallel lines all though any regular polygon with an odd number of lines will have no parallel lines If three points were in a straight line it could be argued that these formed a triangle with parallel sides, though really it would be just a line; or if we had a triangle with infinite height the sides would be parallel. In any other case, no.


What is a four-sided polygon with opposite sides parallel?

A four-sided polygon with opposite sides parallel could be a square, a rectangle, or a rhombus.If it has one pair of opposite, parallel sides, then it is a trapezoid. If it has two pairs of opposite, parallel sides, then it is a parallelogram.


What is a flat closed surface that has congruent and parallel opposite sides?

That could be numerous polygons: a square, a regular hexagon, a regular octagon, a regular dodecagon ... Any regular polygon with an even number of sides could be your answer.


Any polygon with two pairs of parallel opposite sides is a parallelogram?

could be a rhombus and a square and a rectangle.


What shape has sides and 2 pairs parallel sides?

It could be an irregular polygon with 6 or more sides or, if a quadrilateral, it could be a parallelogram.