Question

what r concave and convex polygons??
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Answer 1

Answer:

convex polygon has no angles pointing inwards. More precisely, no internal angle can be more than 180°. If any internal angle is greater than 180° then the polygon is concave.

Concave is an adjective that describes a surface that curves inward, or is thinner in the middle than on the edges.

Answer 2

Step-by-step explanation:

• 》》 A concave polygon is defined as a polygon with one or more interior angles greater than 180°. It looks sort of like a vertex has been 'pushed in' towards the inside of the polygon. Note that a triangle (3-gon) can never be concave.
• A concave polygon is the opposite of a convex polygon. See Convex Polygon.
• In the figure above, drag any of the vertices around with the mouse. Take note of what it takes to make the polygon either convex or concave. Also change the number of sides.
• 》》 A convex polygon is defined as a polygon with all its interior angles less than 180°. This means that all the vertices of the polygon will point outwards, away from the interior of the shape. Think of it as a 'bulging' polygon. Note that a triangle (3-gon) is always convex.
• A convex polygon is the opposite of a concave polygon. See Concave Polygon.
• In the figure above, drag any of the vertices around with the mouse. Take note of what it takes to make the polygon either convex or concave. Also change the number of sides.