A reflex angle is over 180 degrees, but the sum of the angles in a quadrilateral, concave or convex, is 360. Therefore, since 180+180=360, you can't have any more degrees even without the amount over 180 that the reflex angle has.
An angle measuring 193 degrees is considered a reflex angle. Reflex angles are angles that measure greater than 180 degrees but less than 360 degrees. They are typically seen in shapes with more than 180 degrees, such as a concave polygon. In this case, the angle of 193 degrees falls within the range of a reflex angle.
A rhombus is a quadrilateral with all sides of equal length. A reflex angle is an angle greater than 180 degrees. A rhombus does not have a reflex angle because the sum of its interior angles is always 360 degrees, which means all its angles are less than 180 degrees.
Oh honey, you're describing a kite. It's like geometry's version of a fashionable accessory - two pairs of equal sides, a pair of equal angles, and that one sassy reflex angle to keep things interesting. It's the quadrilateral that's all about balance and style.
It could be a kite, an arrowhead or an irregular quadrilateral with a right angle - which has no specific name.
Reflex angle
concave
Reflex angle
The only quadrilaterals with a reflex angle are arrowheads (or chevrons).
It is a hexagon with a reflex angle.
It is also called an arrowhead. It is a kite with one of the vertices between equal sides "pushed in" so that it becomes a reflex angle.
Yes
A regular polygon has all its angles of equal measure, and its sides of equal length. In the case of a quadrilateral, that would mean a square. A concave quadrilateral must have at least one reflex angle and so cannot be a square. So it cannot be regular.
No.
Any angle <360 degrees is possible, though it would be a concave quadrilateral if the angle were greater than 180 deg.
A concave pentagon.
Yes - a chevron or arrowhead.
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