![]() Pentagon, the large five-sided building that serves as the headquarters of the U.S.Scalene triangle, quadrilaterals such as a rectangle, trapezoid or a kite, irregular pentagon, and hexagons are common examples of the irregular polygon. Any polygon that is not regular is thus an irregular polygon. It is a polygon that has sides of unequal length and angles of unequal measure. Triangle, quadrilateral, pentagon, and hexagon are common examples of the regular polygon. A regular polygon is thus both equilateral and equiangular. It is a polygon having all sides of equal length and all interior angles of equal measure. Some diagonals of a concave polygon lie outside the closed figure.Ī dart or an arrowhead in quadrilaterals, some irregular pentagon and hexagon are common examples of the concave polygon. Triangles, all convex quadrilaterals, regular pentagon, and regular hexagon are common examples of a convex polygon.Īlso known as a non-convex polygon, it is a polygon having at least one of its interior angles measuring more than 180°. All the diagonals of a convex polygon lie inside the closed figure. The many variations, however, can be grouped into one of 10 basic types depending on their general shape and height in the sky. It is a polygon that has all its interior angles less than 180°. This connects the concept to their everyday experiences and reinforces understanding. Encourage them to identify the shapes present in those objects. Types of Polygon Others Ways of Classifying Polygons 1) Based on Interior Angles Show students pictures or bring in real-world objects that exemplify different 3D shapes.
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