What is the polygon theory?
The properties of polygons are based on its sides and angles. The sum of all the interior angles of an n-sided polygon is (n – 2) × 180°. The number of diagonals in a polygon with n sides = n(n – 3)/2. The number of triangles formed by joining the diagonals from one corner of a polygon = n – 2.
What does polygonal mean?
A polygon is a closed shape with straight sides. Rectangles, triangles, hexagons, and octagons are all examples of polygons. If you want to describe something as angular and closed, like, say, the Pentagon, or a stop sign, you could call it “polygonal.”
What is congruent polygon?
Two polygons are congruent if their corresponding sides and angles are congruent. Note: Two sides are congruent if they have the same length and angles are congruent if they have the same measure. They also have to have the same number of sides. We can think of congruent polygons as coming from the same stamp.
What is the difference between concave and convex polygon?
A convex polygon does not have a dent in the shape whereas a concave polygon has one side of the shape towards the inside of the shape. The interior angles of a convex polygon are less than 180° whereas the angles in a concave polygon are more than 180°.
What are polygons explain different of polygons?
A polygon is any 2-dimensional shape formed with straight lines. Triangles, quadrilaterals, pentagons, and hexagons are all examples of polygons. The name tells you how many sides the shape has. For example, a triangle has three sides, and a quadrilateral has four sides. This is what makes a polygon.
What does Poly mean Greek?
#68 poly → many The origin of the prefix poly- is from an ancient Greek word which meant “many.” This prefix appears in, well, “many” English vocabulary words, such as polysyllabic, polyhedron, and Polynesia.
What is a polygon grade 6?
key idea. A polygon is regular if all of its sides have the same length and all of its angles have the same measure.