A polygon with 4 sides is called

Regular polygon - A polygon having all sides of equal length and the interior angles of equal measure is known as a regular polygon i.

A quadrilateral is a polygon that has exactly four sides. This also means that a quadrilateral has exactly four vertices, and exactly four angles. Discussions of 2-D shapes sometimes refer only to the boundary the line segments that form the edges of the figure or to the interior as well. The usual definitions of polygons, however, refer only to the line segments that form the edges of the polygon. Most of the time, context will make clear what you mean, but you should remain aware that in some cases you may need to clarify. Elementary school curricula typically have children learn the names of special subsets of quadrilaterals with particular features.

A polygon with 4 sides is called

In geometry a quadrilateral is a four-sided polygon , having four edges sides and four corners vertices. The word is derived from the Latin words quadri , a variant of four, and latus , meaning "side". It is also called a tetragon , derived from Greek "tetra" meaning "four" and "gon" meaning "corner" or "angle", in analogy to other polygons e. Since "gon" means "angle", it is analogously called a quadrangle , or 4-angle. Quadrilaterals are either simple not self-intersecting , or complex self-intersecting, or crossed. Simple quadrilaterals are either convex or concave. The interior angles of a simple and planar quadrilateral ABCD add up to degrees of arc , that is [1]. All non-self-crossing quadrilaterals tile the plane , by repeated rotation around the midpoints of their edges. A self-intersecting quadrilateral is called variously a cross-quadrilateral , crossed quadrilateral , butterfly quadrilateral or bow-tie quadrilateral. The two diagonals of a convex quadrilateral are the line segments that connect opposite vertices. The two bimedians of a convex quadrilateral are the line segments that connect the midpoints of opposite sides. The four maltitudes of a convex quadrilateral are the perpendiculars to a side—through the midpoint of the opposite side. The area can be expressed in trigonometric terms as [14]. The area can be also expressed in terms of bimedians as [16].

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In geometry a quadrilateral is a four-sided polygon , having four edges sides and four corners vertices. The word is derived from the Latin words quadri , a variant of four, and latus , meaning "side". It is also called a tetragon , derived from Greek "tetra" meaning "four" and "gon" meaning "corner" or "angle", in analogy to other polygons e. Since "gon" means "angle", it is analogously called a quadrangle , or 4-angle. Quadrilaterals are either simple not self-intersecting , or complex self-intersecting, or crossed. Simple quadrilaterals are either convex or concave. The interior angles of a simple and planar quadrilateral ABCD add up to degrees of arc , that is [1]. All non-self-crossing quadrilaterals tile the plane , by repeated rotation around the midpoints of their edges. A self-intersecting quadrilateral is called variously a cross-quadrilateral , crossed quadrilateral , butterfly quadrilateral or bow-tie quadrilateral. The two diagonals of a convex quadrilateral are the line segments that connect opposite vertices.

A polygon with 4 sides is called

If you're seeing this message, it means we're having trouble loading external resources on our website. To log in and use all the features of Khan Academy, please enable JavaScript in your browser. Search for courses, skills, and videos. Classify quadrilaterals, including rectangles, rhombuses, and squares. A quadrilateral is a polygon with four sides. Here are some examples of quadrilaterals:.

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The usual centre, called just centroid centre of area comes from considering the surface of the quadrilateral as having constant density. The names of many of these special quadrilaterals are also typically part of the elementary curriculum, though little else about the properties of these figures may be studied until high school. The lengths of the bimedians can also be expressed in terms of two opposite sides and the distance x between the midpoints of the diagonals. A self-intersecting quadrilateral is called variously a cross-quadrilateral , crossed quadrilateral , butterfly quadrilateral or bow-tie quadrilateral. All non-self-crossing quadrilaterals tile the plane , by repeated rotation around the midpoints of their edges. In any convex quadrilateral ABCD , the sum of the squares of the four sides is equal to the sum of the squares of the two diagonals plus four times the square of the line segment connecting the midpoints of the diagonals. Elementary school curricula typically have children learn the names of special subsets of quadrilaterals with particular features. This is also a corollary to the parallelogram law applied in the Varignon parallelogram. A non-planar quadrilateral is called a skew quadrilateral. College Mathematics Journal. Shape: Equiangular Read more.

A Quadrilateral has four-sides , it is 2-dimensional a flat shape , closed the lines join up , and has straight sides. Also see this on Interactive Quadrilaterals. Try drawing a quadrilateral, and measure the angles.

The shape and size of a convex quadrilateral are fully determined by the lengths of its sides in sequence and of one diagonal between two specified vertices. See also: Varignon's theorem. Online Tutors. Shape: Equiangular Read more. The area of a quadrilateral ABCD can be calculated using vectors. Archived from the original PDF on May 14, Inclusive definitions are used throughout. Shape: Quadrilateral Topics: Mathematical Language. Our Team. Related posts. Categories : 4 number Quadrilaterals. Classification Just as triangles and quadrilaterals are special types of polygons, there are many subclasses of quadrilaterals.