Question

what is a polygon?
and
what is a convex polygon?
and
what is a concave polygon?
and
what is a open curves ?
and
what is a closed curves?​

Answer 1

Answer:

1. " A polygon is a two-dimensional geometric figure that has a finite number of sides. The sides of a polygon are made of straight line segments connected to each other end to end. The line segments of a polygon are called sides or edges.
2. A convex polygon is a polygon with all interior angles smaller in measure than a straight angle (180°). More. In a convex polygon, all diagonals will occur in the interior of the polygon, as illustrated the the example below left.
3. A concave polygon is a polygon that is not convex. A simple polygon is concave iff at least one of its internal angles is greater than. . An example of a non-simple (self-intersecting) polygon is a star polygon. A concave polygon must have at least four sides.
4. An open curve does not enclose any area within itself and it has two endpoints.
5. A closed curve, has no end points and encloses an area (or a region). It is formed by joining the end points of an open curve together. Circles , ellipses are formed from closed curves."

Answer 2

Answer:

1. A polygon is a flat, two-dimensional (2D) shape with straight sides that is fully closed (all the sides are joined up). Polygons may have any number of sides.
2. convex polygon is a simple polygon (not self- intersecting) in which no line segment between two points on the boundary ever goes outside the polygon.
3. concave polygon is a polygon that is not convex. A simple polygon is concave iff at least one of its internal angles is greater than. . An example of a non-simple (self-intersecting) polygon is a star polygon. A concave polygon must have at least four sides.
4. An open curve is a curve where the beginning and end points are different
5. closed curve is a curve where the beginning and end points are the same.