A square
a right angle has 3 angles on it please.
the polygon would be a square
Polygon
A concave hexagon is one in which one or two interior angles are greater than 180 degrees. With one reflex angle, it would look like a chevron.The browser used here is pretty grim for graphics but, the following is a crude rendition. Ignore the dots - they are required to get the spacing approximately right!_____\.......\..\.......\../......//____/
It's an irregular shape, but not an irregular polygon.Addendum to the above answer:Hopefully most of us will accept the above answer as correct, since it is correct for any practical or usefull purpose. However, if you are interested in pure theoretical geometry (which appears to be the case of the asker of the above question), consider the following.A "polygon" is, by definition, a multiple-sided, multiple-angled plane figure. An oval, like a circle, at first glance, appears to have only one continuous side and no angles, so it does not qualify as a polygon.However, if you had a polygon with 100 equal sides and 100 equal angles, it would look somewhat like a circle, and if it had 1000 it would look even more like a circle. If it had 10 million sides and angles, it would be, for practical purpose, a circle...even though it is still a polygon (a multiple-sided figure).So a true circle could be considered to be a regular polygon with an infinite number of equal sides and a corresponding number of equal anglesAn oval, on the other hand, would have an infinite number of sides, but would have ever-changing angles between them, making the oval an irregular polygon.
a house
A right angle triangle or an obtuse triangle
it's a trapezoid
It looks like a square with a triangle on top of it.
Right angles are 90 degrees. | | | | | _________ This is what a right angle looks like.
Right angles are 90 degrees. | | | | | _________ This is what a right angle looks like.
A polygon is a shape in which every site is a line segment. It can have any number of sides and any number of angles, but always has the same number of sides as it has angles..
A plane figure with at least three straight sides and angles, and typically five or more.
http://www.base2.it/img/floor.JPGAn irregular polygon is a closed planar figure which has sides that are not equal and/or angles that are not equal.
Right Angles look like an L a perfect L
it can be a triangle that is right, acute, or obtuse
Can't imagine what a square with no right angles might look like!