It is a concave or reentrant polygon.
an angle whose vertex is the center of the polygon and whose sides pass through adjacent vertices.
Theorem: The sum of the interior angles in a polygon with n sides is 180º(n - 2).In the pentagon below, we have labeled the interior angles 1, 2, 3, 4, and 5. Each of these is supplementary respectively to exterior angles 6, 7, 8, 9, and 10. Therefore we have: We know that angles 1 through 5 in a pentagon have a sum of 540º. We substitute 540º for these angles and we have:. Subtracting 540º from both sides, we can find the sum of the five exterior angles of this pentagon: .
Some examples are:Triangle, 3 side and 180 degrees of internal anglesQuadrilateral, 4 sides and 360 degrees of internal anglesPentagon, 5 sides and 540 degrees of internal anglesHexagon, 6 sides and 720 degrees of internal anglesHeptagon, 7 sides and 900 degres of internal anglesOctagon, 8 sides and 1080 degrees of internal anglesAll polygons have a total sum of 360 degrees of external angles.Polygons can be classified into different kinds depending on certain characteristics like:Convex: any line drawn through the polygon meets its boundary exactly twice.Non-convex: a line may be found which meets its boundary more than twice.Simple: the boundary of the polygon does not cross itself.Concave: non-convex and simple.Star-shaped: the whole interior is visible from a single point, without crossing any edge.Self-intersecting: the boundary of the polygon crosses itself.Star polygon: a polygon which self-intersects in a regular way.Triangle - has 3 sidesQuadrilateral - has 4 sidesPentagon - has 5 sidesHexagon - has 6 sidesHeptagon - has 7 sidesOctagon - has 8 sidesNonagon - has 9 sidesDecagon - has 10 sidesDodecagon - has 12 sidesA polygon can have any number of sides that can enclose an area, beginning with a triangle (3). You can have as many sides in polygon that you want. Tetragon (square), pentagon, hexagon, heptagon, octagon, nonagon, decagon, undecagon, dodecagon, triangle, and a quadriliateral. That's all the "named" polygons, but you can have a polygon with 100 sides if you want! The root 'Poly' just means 'many'. A polygon can not have intersecting lines, curved lines, less than three sides, and no gaps. A polygon has to follow those rules but it can be whatever shape that you want it to be!triangle, quadrilateral,pentagon,hexagon,heptagon,octagon,nonagon,decagon,undecagon,dodecagonPolygons can be classified into different kinds depending on certain characteristics like: Convex: any line drawn through the polygon meets its boundary exactly twice.Non-convex: a line may be found which meets its boundary more than twice.Simple: the boundary of the polygon does not cross itself.Concave: non-convex and simple.Star-shaped: the whole interior is visible from a single point, without crossing any edge.Self-intersecting: the boundary of the polygon crosses itself.Star polygon: a polygon which self-intersects in a regular wayPolygons can be classified into different kinds depending on certain characteristics like:Convex: any line drawn through the polygon meets its boundary exactly twice.Non-convex: a line may be found which meets its boundary more than twice.Simple: the boundary of the polygon does not cross itself.Concave: non-convex and simple.Star-shaped: the whole interior is visible from a single point, without crossing any edge.Self-intersecting: the boundary of the polygon crosses itself.Star polygon: a polygon which self-intersects in a regular way.Triangle - has 3 sidesQuadrilateral - has 4 sidesPentagon - has 5 sidesHexagon - has 6 sidesHeptagon - has 7 sidesOctagon - has 8 sidesNonagon - has 9 sidesDecagon - has 10 sidesDodecagon - has 12 sidesAll polygons have a total sum of 360 degrees of external angles.
32. 16 through opposite vertices and 16 through the centres of opposite sides.
A decagon is a polygon with 10 sides and 10 angles. Each angle in a regular decagon measures 144 degrees. The sum of the interior angles of a decagon is 1440 degrees. Decagons have lines of symmetry that pass through the center of the shape and divide it into two equal halves.
Concave
It is a convex polygon.
convex TeTe <3
Convex polygon. When the sides are extended, none of them pass through the polygon's interior.
convex
Convex.
A concave polygon.
concave
concave
An interior angle is an angle defined by two sides of a polygon and that is inside the polygon. Opposite interior angles are specific pairs of interior angles, those that are opposite each other in the polygon. Alternate or opposite interior angles are also angles that lie on opposte sides of the tranversal line that cuts through parallel lines.
No.
concave